[often in imperative]not bother to say something because it is pointless
別廢話
find or provide a solution to a difficulty or disaster
救場，解決問題，排除災(zāi)難
prevent someone dying by taking specific action
搶救某人性命
rescue someone from danger or difficulty
救某人脫離危險(xiǎn)（或困難）
(Nautical, archaic)get in and out of port while the tide lasts
(航海 古)漲潮時(shí)進(jìn)出港
avoid involving someone in useless or pointless effort
省卻某人麻煩（或費(fèi)心）
write it down and &B{save yourself the trouble of} remembering.
把它寫下來，免得你費(fèi)心記它。
To refrain from a futile appeal or effort
不必白費(fèi)勁：省去無用的請求或努力
Save your breath; you can't dissuade them.
別白費(fèi)勁兒了；你勸阻不了他們的