I can't do anything halfheartedly. I have to do everything 100 percent.

我做任何事情都不能半心半意。我做每件事都必须百分之百地投入。

《柯林斯英汉双解大词典》

I'll go down to show my support, if I can't do anything more.

如果我不能做更多的事，我会一直表示我的支持。

youdao

"I must go to school to continue my study because I can't do anything without a good education," I said to myself silently.

“我必须去学校继续学习，因为没有良好的教育我什么事也做不了。”我默默地对自己说。

youdao

"I thought that my dreams were over now." "I can't do anything in my whole life.

VOA: standard.2010.08.02

people that you know, haven't drawn since school or think, "Oh, no, I can't do anything creative."

还是自上学开始就没画过画的人，或者有这样想法的人，“哦，不，我做不了有创意的事。”

在市场遇到的人 - SpeakingMax英语口语达人

.. We've done a lot-- I shouldn't say we haven't done anything-- but we can do a lot more.

我们做了很多-,我不该说我们什么都没做-,但是我们可以本做得更好。

耶鲁公开课 - 金融市场课程节选

But I'm not gonna get all worked up about what I can't do anything about.

ECONOMIST: The Mexican border

As it is, I can't do anything except ship you back to Enos at Rest-and-be-thankful.

NPR: Excerpt: The Sherwood Ring

Once they're on the pitch I can't do anything about what's happening out there - that's down to the players.

BBC: SPORT | Rugby Union | English | Saint Budge eyes a miracle