门缝的英文：
a crack between a door and its frame

参考例句：

The wind whistled through a crack in the door.
风从门缝中呼呼刮了进来。

But near the door there stood a little table, which formed an embarrassing angle with it, and barred the entrance
但是门旁有一张小桌子，那角度堵住了路，妨碍他通过门缝。

crack是什么意思：
n. 裂缝，爆裂声，猛烈的一击，尝试，俏皮话，瑕疵
v. 使爆裂，使霹啪作响，使嗓音变粗，破解
adj. 第一流的
adv. 霹啪一声地

season cracking
风干裂缝, 应力腐蚀裂纹, 季裂

a crack; (small cracking sounds) crackle
爆裂声

The histone code will not be easy to crack.
组织蛋白的密码不是那麽容易破解的。

between是什么意思：
prep. 在...之间；私下；来往于…之间；由…分担（分享）；总共
adv. 在中间

Between ourselves
秘密地说

Interaction between systems or between properties of a system.
系统间或一个系统的各种特性之间的相互作用。

You have your choice between the two.
在这两个之中，你有选择权。

door是什么意思：
n. 门，门户；途径

The door was unclosed.
门被人打开了。

This door is manual.
这个门是要用手操作的。

Who is knocking the door || Who is knocking || Who is at the door || Who is knocking at the door?
谁在敲门