You'd better not make remarks about things that you don't know at all.

对于你不了解的事情，你最好不要发表评论。

youdao

Even if you are not prepared to work up a sweat three times a week, any activity is better than none.

即使你不准备1周流3次汗，任何活动总比没有要好。

《柯林斯英汉双解大词典》

Rather than getting caught up in how you could have done better, why not offer yourself a compassionate response?

与其纠结自己本可以做得更好，为什么不给自己一个有同情心的回答？

youdao

"You do not need to be a rocket scientist to see that our soap cleans better."

VOA: special.2010.06.27

Either keep up the good work or you better change your strategy because you are not mastering the material.

保持好的工作,或者你最好改变你的策略,因为你不擅长处理这个材料。

麻省理工公开课 - 固态化学导论课程节选

You might think that its function is to make you more - a better cyclist but that's not its only function.

你也许只知道它的作用是--,使你成为一个更好的自行车手,但这并不是它的唯一功能

耶鲁公开课 - 生物医学工程探索课程节选

You better check twice or you better not cry if you lose your money, your credit cards, or even your identity.

FORBES: You better watch out: Online shopping attacks are coming to town.

But you're not better than the rules, and you're not more important than anyone else on the team.

WSJ: The Right Level of Self-Esteem for a Child

No one is better than you, but you're not better than anyone else.

CNN: For Class of 2013, a cold shower