youdao

It appears that the shell has to crack open or break down somewhat to allow the seed to soak up water.

看来，为了让种子吸收水分，种子的外壳必须裂开或破裂。

youdao

These are volcanoes so explosive that they burst open in a single big crack.

这些火山爆炸性极强，爆发瞬间出现了一道大裂缝。

youdao

When I had waited a long time, without hearing him lie down, I decided to open a little -- a very,very little -- crack in the lantern.

VOA: special.2009.05.16

Also a nearby volcano erupted four years ago,ripping open a crack in the Great Rift Valley.

VOA: standard.2009.12.14

But, noting that former Washington Post Co. board members and longtime Graham family friend Warren Buffett was a supporter of paywalls, he left the door open a crack to the possibility of adding one at the Post.

WSJ: Washington Post Plans a Paywall

When asked directly about this possibility, AMD was a bit coy and continued to insist that x86 is alive, healthy, and slated for a magnificent future, but nonetheless left the door open a crack with respect to the potential that ARM cores could ultimately replace x86 cores in some future products.

FORBES: AMD Woos Developers With Promises Of Efficiency

Once you open the window a crack, you're gonna have to throw open the doors eventually.

CNN: Review: 'The Muppets' still finding its felting