Plattner mortar
[化] 冲击钵
🧩 词语组成解析
mortar
['mɔ:tə]
n. 迫击炮;砂浆;房产;研钵;
vt.& vi. 用迫击炮攻击（或袭击）;用灰泥涂抹[结合];
🗣️ 情景例句
and where do they report?
他们去哪儿报到？
He tries to button his own shirt,but he can't do it.
他试着扣好他的自己的衬衫，但是他不能做到。
We're going to help some farmers with their work.
我们打算去帮助一些农民干活。