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1·They are having a swimming contest.

他们在举行游泳赛。

2·They challenge us to a swimming contest.

向…挑战，邀请…比赛。

3·I really have a good time when I swim, and I also got good result in the swimming contest in last year.

我游泳时感觉非常快乐，并且我在去年的游泳比赛中也取得了好成绩。

4·Today we went to the Oriental Land Villa. We made a small swimming contest, I got the third. I am very happy.

今天我们回到了上海并且住进了东方绿洲别墅酒店。下午我们在游泳池进行了小的游泳比赛，我得了第三名，哈哈！ 我很开心。

5·As usual, Dora received first prize in the swimming contest. It's the third consecutive year that she has won.

与往常一样，多拉再次拿到游泳比赛的冠军。这已经是他连续第三年获胜。

6·During the feast, a thane named Unferth tries to get into a boasting match with Beowulf by accusing him of losing a swimming contest.

庆典过程中，一位名叫恩费尔特的领主为了和贝奥武夫比赛投巨石，就讥讽他曾经输掉的游泳比赛。

7·I first saw him in his music videos. It seemed that he was quite handsome. I came to know him in a swimming contest. His teeth were very white and he had big and firm arms.

最初在电视看到Eric头发有些少阴，好像很帅，第一次在水运会认识他，见到他的牙齿很白，手臂很大，很结实。

8·The optimization of swimming direction in the contest of crossing the Yangtze river is studied.

研究参加长江竞渡的游泳者对游泳方向的最优选择问题。