Her eyes were tightly closed.

她的双眼紧闭着。

《牛津词典》

Her lips clamped tightly together.

她的双唇紧闭。

《牛津词典》

Grip the rope as tightly as you can.

尽可能紧紧抓住绳子。

《牛津词典》

Harvest the center flower-bud cluster of broccoli when it reaches the size you want and while the buds are still tightly together.

VOA: special.2010.03.09

The inner electrons are so tightly bound that they are for all intents and purposes, immobilized when it comes to reactivity.

内部电子被紧紧地束缚着,因此无论怎样，当进行反应时，它都是固定的。

麻省理工公开课 - 固态化学导论课程节选

There may be some sort of metaphysical laws that tie the two things so tightly together that you'll never actually get one without the other.

因为一些形而上学的定律,将两者紧密联系在一起,使你无法把其分离开来

耶鲁公开课 - 死亡课程节选

If they passed through at all, it was en route elsewhere, clutching their wallets tightly.

BBC: A new dawn for the Mezzogiorno?

They fit so tightly together they are nearly impervious to rain and sun, outlasting all other colors.

FORBES: The Science of Small

"We'll be tightly focused on FIX" in the Black Hat talk, entitled "Hacking Capitalism, " Goldsmith says.

FORBES: Magazine Article