We’re all scratching our heads for an answer to the problem.

为了找到个的答案我们都绞尽脑汁。

He had to rack his brains to solve that complicated problem.

他不得不绞尽脑汁去那个复。

His classmates were labouring with elementary algebra.

他的同学们正在绞尽脑汁地演算初等代。

He puzzled himself over the matter.

他对那件事绞尽脑汁。

She is worrying the problem out.

她正在绞尽脑汁个。

I’ve been racking my brains all day trying to remember his name.

我一整天都绞尽脑汁，想要回忆起他的名字。

All night I have been tossing and turning racking my brains to think what could have possessed the young man to kill himself.

整整一晚我辗转反侧, 绞尽脑汁, 想弄明白是什么原因竟能促成个年轻人自杀。

We’re all scratching our heads for an answer to the problem.

为了找到这个问题我们都绞尽脑汁。

He had to rack his brains to solve that complicated problem.

他不得不绞尽脑汁去解决那个复杂问题。

His classmates were labouring with elementary algebra.

他同学们正在绞尽脑汁地演算初等代题。

He puzzled himself over the matter.

他对那件事绞尽脑汁。

She is worrying the problem out.

她正在绞尽脑汁解决这个问题。

I’ve been racking my brains all day trying to remember his name.

我天都绞尽脑汁，想要回忆起他名字。

All night I have been tossing and turning racking my brains to think what could have possessed the young man to kill himself.

晚我辗转反侧, 绞尽脑汁, 想弄明白是什么原因竟能促成这个年轻人自杀。

We’re all scratching our heads for an answer to the problem.

为了找到这个问题的答案我们都。

He had to rack his brains to solve that complicated problem.

他去解决那个复杂问题。

His classmates were labouring with elementary algebra.

他的同学们正在地演算初等代题。

He puzzled himself over the matter.

他对那件事。

She is worrying the problem out.

她正在解决这个问题。

I’ve been racking my brains all day trying to remember his name.

我一整天都，想要回忆起他的名字。

All night I have been tossing and turning racking my brains to think what could have possessed the young man to kill himself.

整整一晚我辗转反侧, , 想弄明白是什么原因竟能促成这个年轻人自杀。

We’re all scratching our heads for an answer to the problem.

为了找到这个问题的答案我们都绞尽脑汁。

He had to rack his brains to solve that complicated problem.

他不得不绞尽脑汁去解决那个复杂问题。

His classmates were labouring with elementary algebra.

他的同学们正在绞尽脑汁地演算初等代题。

He puzzled himself over the matter.

他对那件事绞尽脑汁。

She is worrying the problem out.

她正在绞尽脑汁解决这个问题。

I’ve been racking my brains all day trying to remember his name.

我一整天都绞尽脑汁，想要回忆起他的名字。

All night I have been tossing and turning racking my brains to think what could have possessed the young man to kill himself.

整整一晚我辗转反侧, 绞尽脑汁, 想弄明白是因竟能促成这个年轻人自杀。

We’re all scratching our heads for an answer to the problem.

为了找到这个问题的答案我们都绞尽脑汁。

He had to rack his brains to solve that complicated problem.

他不得不绞尽脑汁去解决那个复杂问题。

His classmates were labouring with elementary algebra.

他的同学们正在绞尽脑汁地演算初等代题。

He puzzled himself over the matter.

他对那件事绞尽脑汁。

She is worrying the problem out.

她正在绞尽脑汁解决这个问题。

I’ve been racking my brains all day trying to remember his name.

我一整天都绞尽脑汁，想要回忆起他的名字。

All night I have been tossing and turning racking my brains to think what could have possessed the young man to kill himself.

整整一晚我辗转反侧, 绞尽脑汁, 想弄明么原因竟能促成这个年轻人自杀。

We’re all scratching our heads for an answer to the problem.

为了找到这个问题的答案我们汁。

He had to rack his brains to solve that complicated problem.

他不得不汁去解决那个复杂问题。

His classmates were labouring with elementary algebra.

他的同学们正在汁地演算初等代题。

He puzzled himself over the matter.

他对那件事汁。

She is worrying the problem out.

她正在汁解决这个问题。

I’ve been racking my brains all day trying to remember his name.

我一整天汁，想要回忆起他的名字。

All night I have been tossing and turning racking my brains to think what could have possessed the young man to kill himself.

整整一晚我辗转反侧, 汁, 想弄明白是什么原因竟能促成这个年轻人自杀。

We’re all scratching our heads for an answer to the problem.

为了找到这个问案我们都绞尽脑汁。

He had to rack his brains to solve that complicated problem.

他不得不绞尽脑汁去解决那个复杂问。

His classmates were labouring with elementary algebra.

他同学们正在绞尽脑汁地演算初等代。

He puzzled himself over the matter.

他对那件事绞尽脑汁。

She is worrying the problem out.

她正在绞尽脑汁解决这个问。

I’ve been racking my brains all day trying to remember his name.

我天都绞尽脑汁，想要回忆起他名字。

All night I have been tossing and turning racking my brains to think what could have possessed the young man to kill himself.

我辗转反侧, 绞尽脑汁, 想弄明白是什么原因竟能促成这个年轻人自杀。

We’re all scratching our heads for an answer to the problem.

为了找到这个问题的答案我们都绞。

He had to rack his brains to solve that complicated problem.

他不得不绞去解决那个复杂问题。

His classmates were labouring with elementary algebra.

他的同学们正在绞地演算初等代题。

He puzzled himself over the matter.

他对那件事绞。

She is worrying the problem out.

她正在绞解决这个问题。

I’ve been racking my brains all day trying to remember his name.

我一整天都绞，想要他的名字。

All night I have been tossing and turning racking my brains to think what could have possessed the young man to kill himself.

整整一晚我辗转反侧, 绞, 想弄明白是什么原因竟能促成这个年轻人自杀。

We’re all scratching our heads for an answer to the problem.

为了找到这个问案我们都绞尽脑汁。

He had to rack his brains to solve that complicated problem.

他不得不绞尽脑汁去解决那个复杂问。

His classmates were labouring with elementary algebra.

他同学们正在绞尽脑汁地演算初等代。

He puzzled himself over the matter.

他对那件事绞尽脑汁。

She is worrying the problem out.

她正在绞尽脑汁解决这个问。

I’ve been racking my brains all day trying to remember his name.

我天都绞尽脑汁，想要回忆起他名字。

All night I have been tossing and turning racking my brains to think what could have possessed the young man to kill himself.

我辗转反侧, 绞尽脑汁, 想弄明白是什么原因竟能促成这个年轻人自杀。