Gas tightness
[化] 氣密性; 不透氣性
?? 詞語(yǔ)組成解析
gas
[g?s]
n. 氣體;[礦業(yè)] 瓦斯;汽油;毒氣;
vt. 加油;毒（死）;
vi. 加油;放出氣體;空談;
int. 該死！（令人氣憤的人應(yīng)即被送毒氣室處死）;
n. 堅(jiān)固, 緊密\\n[化] 緊度; 嚴(yán)密度
??? 情景例句
If anyone has any objections, now is the time to voice them.
如果有人反對(duì)，現(xiàn)在就可以說出來。
A vaunter and a liar are near akin.
自詡和說謊，二者正相仿。
In the new country he became absorbed in making a new life for the two of us, so that he gradually ceased to grieve.
在這個(gè)新的國(guó)家里，父親專心致志地為我們倆開創(chuàng)一種新的生活，慢慢地不傷心了。