Ice sheets are heavy, and when not supported, they crack off.

冰川十分厚重，而且当失去支撑时，它们就会破裂。

youdao

People who are low in EQ might crack off jokes at inappropriate times.

低情商的人总是在不恰当的时候开玩笑。

youdao

You're clearly having some kind of a crack-up, so I suggest you take three weeks off.

你显然有某种精神崩溃的样子，所以我建议你休假三周。

《柯林斯英汉双解大词典》

"We are very pleased,and it is part of our ongoing effort to crack down on off-shore tax evasion.

VOA: standard.2009.08.19

The heat fuses the two and excites the fault line enough to crack off any wafer sitting above it.

FORBES: Chillin' Chips

So you just crack off a piece of state and you hand it to the game program running on a person's PC.

FORBES: Magazine Article

That doesn't mean that great minds aren't already trying to crack the challenges that off-world farming presents.

ENGADGET: Alt-week 9.8.12: Moon farming, self powered health monitors and bringing a 50,000 year-old girl to life