你必须穿上救生衣。
You need a sleeping bag and a life jacket.
你们要带一个睡袋和一件救生衣。
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。
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。
So what? You'll be safe with a life jacket and a helmet on.
那又怎么样？穿上救生衣和戴上安全帽你就万无一失了。
You must drive slowly. You must wear a life jacket. You must stop at a red light.
你必须开慢点。你必须穿救生衣。你必须在红灯时停。
You can ride in a canoe. Remember your life jacket.
你能乘坐独木舟。记得穿上救生衣。
You can ride in a canoe. Remember your life jacket.
你能乘坐独木舟。记得穿上救生衣。
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