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1·After lunch we all trooped down to the beach.

午餐后我们都成群结队走向海滩。《牛津词典》

2·They all trooped back to the house for a rest.

他们都成群结队地回房子里休息。《柯林斯英汉双解大词典》

3·Presently a bell rang, and they all trooped into school.

不一会儿下课铃响了，他们成群结队地进了学校。

4·They all trooped into the park.

他们成群结队地拥进公园。

5·The children trooped into the park.

孩子们列队走进公园。

6·The children trooped out of school.

孩子们一队队从学校出来。

7·The satisfied visitors trooped home.

矿工们成群结队地回家了。

8·The satisfied visitors trooped home.

心满意足的来宾结队回家了。

9·The miners trooped home.

矿工们成群结队地回家了。

10·They children trooped into the room.

孩子们成群结队地走进房间。

(1)troop withdrawal撤军