A thick layer of black scum lay on the canal water. 運河水面上有一層厚厚的黑色浮渣。
The people who do these dreadful things are scum. 做這些可怕之事的人真是混蛋。
👨🏻🏫 Mr. Ng 麥美倫詞典 📚 – macmillan.mister5️⃣.net切换为简体中文