Scum defect
[机] 表面浮松
🧩 词语组成解析
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 won't permit you to buy a crossbow, now or ever.
我不会允许你买弓弩的，永远也不会。
If I have time tomorrow,I think I'll get a haircut.
如果我明天有时间，我认为我应该理发。
What do the farmers do with your machines?
农民用机器做什么呢？