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1·The life jacket failed to inflate.

救生衣未能充气。《牛津词典》

2·Remember your life jacket, then.

记着拿你的救生衣。

3·You must wear a life jacket.

你必须穿上救生衣。

4·Remember your life jacket.

记得穿上救生衣。

5·Where is my life jacket?

我的救生衣在哪里？

6·You need a sleeping bag and a life jacket.

你们要带一个睡袋和一件救生衣。

7·Everyone wears a life jacket while kayaking.

划独木舟的时候，每个人都会穿一件救生衣。

8·All personnel shall wear life jacket at all time.

所有人员应随时穿戴救生衣。

9·The life jacket buoyed her up until help arrived.

救生衣使她浮在水上直到获救。

10·You'll be safe with a life jacket and a helmet on.

穿上救生衣和戴上安全帽你就万无一失了。

救生衣

1·Where is my life jacket?

我的救生衣在哪里？

2·The planes have the best radios and the most reliable instruments. Each plane has life rafts. Each man has a life jacket. The pilots are very experienced.

飞机有最好的无线电设备，最可靠的仪器。每架飞机都有救生筏。每个人都有一套救生衣。飞行员非常有经验。

3·All personnel shall wear life jacket at all time.

所有人员应随时穿戴救生衣。

4·You can ride in a canoe. Remember your life jacket.

你能乘坐独木舟。记得穿上救生衣。

5·You have to wear special clothing, a helmet and a life jacket, just in case your raft gets turned upside down or sinks.

你得身着特制的服装，戴上头盔，穿上救生衣，以防橡皮筏倾翻或者沉入水中。