Air tightness
[机] 气密度
🧩 词语组成解析
air
[ɛə]
n. 天空;气氛;空运;（简单易记的）曲调;
vt.& vi. 晾晒;烘干;播送;广播;
vt. 使房间通风， 透气;
n. 坚固, 紧密\\n[化] 紧度; 严密度
🗣️ 情景例句
He was left in charge of the shop while the manager was away.
经理不在时他负责这个商店。
I saw him last Monday.
我上个星期一看到他。
Perhaps in those days I was. Pierre and I did have a very good time at the ball. But that was the last moment of happiness in our lives. That night everything changed.
那时候，我也许是个漂亮姑娘。我和比尔在舞会上的确玩得很痛快。不过，那是我们一生中最后的幸福时刻。那天晚上一切都变了。