She mailed the letter, not really expecting an answer.
她寄出了信，但并不真的期待有什么回音。
After having checked the address carefully, she mailed the letter.
她仔细检查了地址后，才把信邮寄走。
Has she mailed the letter yet? Yes, she's already mailed the letter.
她把信寄了吗？是的，她已经把信寄了。
A few weeks after she mailed the letter, Mrs. Arnold received a handwritten note from Mr. Obama.
阿诺德夫人寄出这封信几周之后，就收到了奥巴马先生亲笔回复的信笺。
She mailed the letter, and then waited, with mingled feelings of trepidation and thrilling expectancy, the arrival of the fateful day.
她这信付邮之后，就等着那命运所系的一日，心中交混着恐惧和切望的感情。
I mailed the letter two weeks ago, she must have received it.
我两个星期前发的信，她一定已经收到了。
I mailed the letter tow weeks ago. She must have received it.
我是两星期以前发的信，她一定已经收到了。
I mailed the letter two weeks ago. She must have received it.
我是两星期以前发的信，她收到了。
I mailed the letter two weeks ago. She must have received it.
我是两星期以前发的信，她收到了。
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