Corundum sand
[化] 刚玉砂
🧩 词语组成解析
n. 刚玉, 金刚砂\\n[化] 刚玉
sand
[sænd]
n. 沙;沙滩;沙色;
vt. 撒沙于;用砂纸磨光;
🗣️ 情景例句
It is important to speak directly and clearly about your subject.
直接了当且明白清楚地说明自己的目的是很重要的。
The cat shut its eyes while it steals cream.
掩耳盗铃。
examined a very large number of men working on aircraft carriers:
调查了许多在航空母舰上工作的人，