Pond scum
n. （浮在死水上面的）绿藻类层
🧩 词语组成解析
pond
[pɑnd]
n. 池塘;
v. 筑成池塘;
scum
[skʌm]
n. 浮渣;泡沫;糟粕;
vi. 产生泡沫;被浮渣覆盖;
vt. 将浮渣去除掉;
🗣️ 情景例句
I'd better hit the books.
我最好勤奋学习。
He washes dresses every day.
他每天都洗衣服。
When the journalist again failed to reply, the editor reluctantly published the article as it had originally been written.
但记者还是没有回复。编辑无奈，勉强按原样发稿了。