Passive air defense
un. 消极防空
🧩 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;
🗣️ 情景例句
but living in New Jersey and the suburbs
但住在 New Jersey的郊区
This nation is noted for its political stability.
这个国家以政治稳定闻名。
He had to choose between death and dishonor.
他不得不在死亡和耻辱之间选择。