elbow grease是什么意思？

elbow grease的音标：elbow grease的英式发音音标为：['elbəu ɡri:s]elbow grease的美式发音音标为：['ɛlˌbo ɡris]...

It took a considerable amount of polish and elbow grease before the brass shone like new.经过大量的抛光和擦拭，黄铜光亮如新。Elbow grease gives the best polish.〔谚语〕苦干出好活.Maybe you could improve it if you use a lot of elbow grease.如果你花力气打扫...