I picked mine up last night.



我昨晚就接到分派的任务。

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Pick sth up不但有收到的意思，还指获得，看到等。

例1：
I picked up a bargain at an auction sale here last weekend.
上个周末，我在此处的拍卖会上买到了便宜货。

例2：
Her grandmother picked up health soon after she got to the seaside.
她的祖母到海滨去后不久，身体就康复了。