There are fears that he will not be able to keep it up when he gets to the particularly demanding third year.

有人担心到了极其艰难的第3年他会坚持不下去的。

《柯林斯英汉双解大词典》

If your definition of boredom is being quiet, mindful, and reflective, keep it up.

如果你对无聊的定义是安静、专注和反思，那就将这一观点保持下去。

youdao

The events recently have gone extremely well and the hotel is beginning to get a very good reputation, so we need to keep it up.

最近的活动进行得非常顺利，酒店也开始有了很好的声誉，所以我们需要继续保持下去。

youdao

As part of the "Hang it up and Keep it Up" campaign, the volunteers not only hang up the nets in the homes but also do follow-up visits to make sure they are being used correctly.

VOA: standard.2009.04.25

I know you can say it easily. I know you can speak well and write well in English. Keep it up!

相信你很快就能掌握的。你的口语跟写作都会很棒的。再接再厉！

I'd better 课堂 - SpeakingMax英语口语达人

This little felt thing there is just to avoid too much friction from building up with the plastic or to keep it slightly separated from the case, but that's it. That's all there was to those things called floppy disks.

这种毡制品的目的是避免,由塑料组成所产生的摩擦力,或者保持稍微的距离，这就是我们要说的,软盘的全部内容。

哈佛公开课 - 计算机科学课程节选

Warshak was not able to keep it up without attracting the attention of the feds.

FORBES: Your Email Now Warrants Greater Privacy, Thanks to Sex Pill Peddling Dude

Can you keep it up for seven days straight, starting as soon as you wake up?

FORBES: 5 Steps Entrepreneurs Should Take To Get More Done

Until then, to all the female MCs and DJs out there, keep it up.

NPR: A Female Rapper Sends a Shout-Out to Women in Hip Hop