Airtight test
[机] 气密试验
🧩 词语组成解析
airtight
['ɛətait]
adj. 不透气的;密封的;<主美口>（防守等）严密的;无懈可击的;
🗣️ 情景例句
Oh, I understand. She cooks and cleans, takes care of the children.
哦，我懂了，她烧饭、清洗、照顾孩子。
You'll hurt your arm, if you don't take care.
你不专心的话，就会伤到你的手指。
How old are you?
你多大啦？