Befouling
v. 弄臭( befoul的现在分词 ); 弄脏; 使堕落; 败坏
🗣️ 情景例句
She suffered terribly when her son was killed.
儿子被杀，她痛苦至极。
I wish to express my gratitude to you for your cooperation.
我要对你的合作表达感激之意。
Also they make the tank look much prettier.
二来，它们还可以使容器看起来更漂亮些。