Preparation of sand
[机] 铸砂处理
🧩 词语组成解析
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
sand
[sænd]
n. 沙;沙滩;沙色;
vt. 撒沙于;用砂纸磨光;
🗣️ 情景例句
What's this for?
为什么要送我花？
It's up to you.
一切由你决定。
Bad luck! said Mother. It doesn't matter!
“真糟糕！”妈妈说，“没关系！”