And if you do, stick at it no matter how much it sucks.

而且你一旦开始工作，就要坚持下去，不管这份工作多么差劲。

This is our last set so we've got to just stick at it a bit longer.

这是我们的最后一组，所以我们时间要稍微长一点。

Revising with your friends may help you stick at it.

【stick】和朋友一起温习功课也许能帮助你坚持下去。

It means signalling to others what one's value system is and sticking by it, even at the occasional cost of public opposition.

这意味着一个人需要向他人表明自己的价值观，并坚持它，即使有时候这样做的代价是站在公众的对立面。