Airtight joint
[機] 氣密接頭
?? 詞語組成解析
airtight
['??tait]
adj. 不透氣的;密封的;<主美口>（防守等）嚴密的;無懈可擊的;
joint
[d??int]
adj. 共同的，聯合的;共享的;兩院的;連帶的，共同的;
n. [解]關節;接合處;下流場所;一塊烤肉（英式英語）;
vt. 結合，聯合;為…裝上接頭，使…有接縫;
??? 情景例句
That would be very helpful.
你這樣做幫忙可大噢。
I can't believe it!
簡直無法相信！
Mohandas Gandhi was born in India in 1869 and was married at the age of 13, following local custom.
莫漢達斯·甘地1869年出生于印度，按照當地的風俗，他13歲時就結了婚。