Quartz sand
[化] 石英砂
🧩 词语组成解析
quartz
[kwɔrts]
n. [矿]石英;
sand
[sænd]
n. 沙;沙滩;沙色;
vt. 撒沙于;用砂纸磨光;
🗣️ 情景例句
And take measures to reinforce them. Please set your mind at rest.
并采取措施加固。请放心好了。
It is a matter of life and death to me.
那对我是生死交关的问题。
Yes, that's right.
是的。