Recall the misery of the past and contrast it with the happiness of today.

甜。

He has been puzzling over the decision for two days.

这个决定让他了两天。

That kid was, he was struggling with his identity, trying to figure himself out.

那个孩子当时年幼，纠结于自我认同，终日自己到底是谁。

Scientists have been puzzling over how to transform surfaces for centuries.

几百年来，科学家们一直改变表面性质的方法。

Scarlett thought hard but Thermopylae meant nothing to her.

温泉关吧！" 嘉了半天也没弄懂" 温泉关" 是什么意。

The smuggler had been thinking desperately.

走私犯。

Long pause, the two men thinking hard.

长时间的停顿， 两人。

I thought hard but I couldn't remember for sure.

我， 但我不起来。

Byron always got like that when he couldn't crack a hustle.

拜伦时也这样。

Dickon was thinking very hard as he scratched Captain's back.

迪肯一边挠着船长的背，一边。

After that he did some hard thinking.

之后他做了一些。

Most of the stuff that you agonize thinking about, they pay no attention to.

大多数你的事情，他们都不会注意。

The merchant thought long and hard about how to get more customers to his store.

商家如何让更多顾客光顾他的店。

As he puzzled over these thoughts, Whitestorm and Darkstripe pushed their way into the den.

正当他这些法时，白风和黑条闯进了巢穴。

He thought so hard his cheek muscles made little knots under his grayish skin.

他， 脸颊上的肌肉在他灰白的皮肤下起了一个个小疙瘩。

Fishlegs hurried after Hiccup, who was now looking at the cavern's exit hole to the sea, thinking hard.

小鱼腿急忙追赶卡嗝，后者正看着洞穴通向大海的出口，。

As he sat one night, before tumbling into his trundle bed, meditating on the hardness of the times, a bright idea struck him.

有一天晚上，他在睡觉前，终于出一个好主意。

Like you, I struggled with these concepts, but eventually, I mastered them, through hard work, resilience and a healthy dose of knuckle whacking.

我也曾和你们一样这些概念，但最终我全部掌握了，正是通过不屑的努力和适量的打关节惩罚。

It's basically to look confused... here in Britain, this tends to be by frowning or squinting your eyes to show that you're thinking very hard.

看起来很困惑..在英国，往往是用皱眉头或眯着眼睛的方式来表明你在。

As he was reflecting in this wise, his eyes fell upon an immense placard which a sort of clown was carrying through the streets.

当他正在这样的时候，他的视线忽然落在一张很大的海报上，这张海报正由一个似乎是马戏团小丑的人物背着，在横滨的大街上走来走去。