She was saddened by her son's ingratitude.
儿子的忘
伤了她的心。
She was saddened by her son's ingratitude.
儿子的忘伤了她的心。
He is not the first politician to kick down the ladder by which he has risen to exalted heights.
他不是第一个被抬上高位便忘的政客。
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上例句、词性
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