You always have to be on edge. You always have to take every practice, every game, like it is your last.

你总是紧张。你总是要抓住每一个练习，每一场比赛，就象它是你最后。

youdao

Whenever you are on a trampoline, be careful not to jump near the edge of it.

当你在蹦床上时，要小心不要在蹦床边缘附近跳。

youdao

If individuals on the edge of a group are more vigilant because they are at greater risk of being captured, then individuals on average would have to be more vigilant in smaller groups.

如果处于群体边缘的个体由于被捕获的风险更大而变得更加警惕，那么个体通常在较小的群体中就必须更加警惕。

youdao

So long as that happens, Asia's financial markets will continue to be on edge.

ECONOMIST: Bruised, battered and broke

So we do increasingly see that the youth that wants to be on the cutting edge and try something new are turning to the Windows phone platform.

FORBES: Nokia Exec: 'Youth Are Pretty Much Fed Up With iPhones'

So I'm confident California will continue to be on the cutting edge of our economy.

WHITEHOUSE: Town Hall in Los Angeles