rescue equipment consisting of a buoyant belt or jacket to keep a person from drowning 同义词：preserver, flotation device,
例句与用法
1.
Look at us as your life preservers 把我们看作你生命的保护者吧
2.
We ' re gonna throw him a life preserver 我们要给他一个护身符
3.
This is a life preserver 这是救生用品。
4.
Survival is key in the harsh lower depths of detroit , and for many the current emotional life preserver is hip hop 对底特律的中下阶级市民来说，他们每天都必须面对生存下去的残酷现实，而他们发泄情绪最好的方法就是透过饶舌歌。
5.
A silky fiber obtained from the fruit of the silk - cotton tree and used for insulation and as padding in pillows , mattresses , and life preservers 木棉一种绢状纤维，从木棉树的果实中提取出来，用作隔音材料，也可用作枕头，褥垫和救生用具中的垫料
6.
He glanced at ruth for reassurance , much in the same manner that a passenger , with sudden panic thought of possible shipwreck , will strive to locate the life preservers 他瞥了一眼露丝，想求得镇静，像个突然害怕船只沉没而心慌意乱急于找救生衣的乘客。
7.
H . rumbold , master barber in a bloodcoloured jerk in and tanner s apron , a rope coiled over his shoulder mounts the block . a life preserver and a nailstudded bludgeon are stuck in his belt 高级理发师霍朗博尔德167穿着血红色紧身皮背心，系着揉皮工人的围裙，肩上扛着盘成一圈的绳子，爬上绞刑架。
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