Contamination tests
[建] 污垢试验
🧩 词语组成解析
contamination
[kənˌtæmi'neiʃən]
n. 污染;弄脏;毒害;玷污;
n. 测验（test的复数）
🗣️ 情景例句
That's very considerate of you, Michelle.
真会体谅别人， Michelle。
Marriage goes by contrasts.
夫妻之间难免有差异。
He's been there for over two years. He's been there since two years ago.
他到校有两年多时间了。他两年前就到那儿学习了。