我第一次去时，是约三个半月前。那时，还是夏天。
The first time I went was about three and half month ago, it was still summer then.
德里克的残疾源于他是一个早产儿，他提前三个半月就出生了。
Derek's problems began when he was born three and a half months prematurely.
德里克的残疾源于他是一个早产儿，他提前三个半月就出生了。
Derek's problems began when he was born three and a half months prematurely.
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