n.救生员;
例句:
The lifeguard revived the man by artificial respiration.
救生员通过人工呼吸救活了那个人.
Do you need the help of a lifeguard?
需要救生员的帮助 吗 ?
Her stint as a lifeguard usually consumes three hours a day.
救生员这项工作每天通常花费她三个小时.