They are a lot of work. I don't have that much time.

养鹦鹉费工夫， 我没有那么多时间照顾它。

The collar where most of the like hardworking meat is, but really flaky, beautiful whitefish.

颈肉大部分费工夫做肉，但薄，漂亮白鱼。

I tried very hard to persuade Peter to quit smoking, but in vain.

我力劝彼得戒烟，但却白费工夫。

O muse, you work in mysterious ways.

哦 得来全不费工夫 天助我也。

This was a waste of time. Couldn't have put it better.

‪-白费工夫 ‪-可不嘛。

Does it matter? Does any of it? He's just a lunatic, and he'll always let you down. And you're wasting your time. All our time.

起得了半点作用吗？他就个疯子，只会让我们白费工夫。你费大家时间。

“There's just no point talking to a Petrified person, ” she said, and they had to admit she had a point when they'd taken their seats next to Hermione.

“跟一个被石化人谈话，完全白费工夫。”她说。当他们在赫敏床边褥子上落座后，不得不承认庞弗雷夫人说得对。

It wasn't your fault, I bet you just walked past when she was turning on the old charm for Diggory and got a blast of it-but she was wasting her time.

不你错，我敢说她当时正在对迪戈里施那个魔法，你正巧经过，就被击中了——不过她次白费工夫了。

The offal fad competed with one for molecular gastronomy, with its spheres of olive juice, then gave way to farm-to-table cooking, which painstakingly detailed the provenance of every radish in a salad.

股动物内脏潮与流行分子料理（用橄榄汁做出小球）展开了竞争，随后又让位于“农场直达餐桌”菜肴，类菜肴会煞费工夫地详细说明沙拉中每一个萝卜来源。