救生衣;一种充气或泡沫材质的安全装备,帮助人在水中保持漂浮、降低溺水风险。(也常泛指“个人漂浮装置”PFD的一种。)
/ˈlaɪf ˌdʒækɪt/
Wear a life jacket when you go on a boat.
坐船时要穿救生衣。
Although he could swim well, he put on a life jacket because the river current was strong and the water was cold.
虽然他很会游泳,但因为河水流速很快、而且水很冷,他还是穿上了救生衣。
由 life(生命)+ jacket(夹克外套)组成的复合名词,字面意思是“保命的外套”。该词在现代水上安全语境中常用来指代能提供浮力的防护服装。