Crack arrest
[化] 止裂
🧩 词语组成解析
crack
[kræk]
vt. 破裂，打开;（使…）开裂;说（笑话）;开瓶;
vi. 断裂，折断;碎裂声，爆裂声;镜子破裂了;失去控制，衰退;
n. 裂缝;试图;缝隙;（可听到响声的）重击;
adj. 训练有素的;技艺高超的;优秀的;一流的;
🗣️ 情景例句
on the telephone for me, please.
请替我拨电话。
These shoes are worn-out.They've lasted a long time.
这些鞋子旧了。已经用了很长时间了。
I am used to traveling by air and only on one occasion have I ever felt frightened.
我习惯了乘飞机旅行，只是有一次把我吓坏了。