1) It was a waste of effort.
白费劲了。
2) Don't dissipate your efforts.
不要白费劲了。
3) Save your breath;you can't dissuade them.
别白费劲儿了;你劝阻不了他们的
4) footslog
[英]['futslɔg] [美]['fʊt,slɑg]
费劲步行
5) Don't try to flog a dead horse.
别白费唇舌了。
6) The road is no good; it's rough and full of holes.
路太差劲了。
补充资料：白费
1.徒然耗费。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条