Air contamination
[化] 空气污染
🧩 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;
contamination
[kənˌtæmi'neiʃən]
n. 污染;弄脏;毒害;玷污;
🗣️ 情景例句
They dismissed him on the spot.
他们立即开除了他。
Hold on,please.
请你等一下。
Sally was very excited because she had never travelled on a train before.
萨莉非常激动，因为她从未乘过火车。