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
Thank you.
谢谢 。
Which one is more expensive?
哪一个是比较贵的？
Am I allowed to stay out past 10?
我可以十点过后再回家吗？