Crack closure
[化] 裂纹闭合
🧩 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;
closure
['kləuʒə]
n. （永久的）停业，关闭;结束;[电]闭合;[数]闭包;
vt. 使结束，使终止;使停止辩论;
🗣️ 情景例句
What's the spelling of your family name, sir?
您的姓怎么拼，先生？
I asked him to go to the store, but he wouldn't
我请他去商店，但是他不肯。
You must look after it. Give it to Mr. Hu.
你一定要好好保管啊！让胡老师帮你拿着。