There is always a lifeguard to ensure that no one comes to any harm

　　總是有一個(gè)救生員在場(chǎng)以確保無(wú)人受到傷害。

　　This month millions of American kids can forget about classroom bells and set off for grandparents' homes, sleep-away camps and lifeguard stands ．

　　這個(gè)月，數以百萬(wàn)的美國小孩可以忘掉上課鈴聲，出發(fā)前往祖父母家、外宿營(yíng)地以及沙灘上的救生員站。

　　Don't swim unless there is a lifeguard on duty.

　　除非有救生員值班,否則不要游泳。

　　Do you think I can become a lifeguard one day?

　　你覺(jué)得我會(huì )成為一名保鏢嗎？

　　Research and Analysis on the Actuality of Lifeguard of Mass Swimming in China

　　我國大眾游泳救生員現狀調查與分析