Calcifications
n. 钙化；石灰化
🗣️ 情景例句
I'll find the people to help do it.
我可以找人来帮忙。
To facilitate carrying, rope or metal handles are indispensable and should be fixed to the boxes.
为便于搬运，绳子或铁把手不可缺少，并将其固定在箱子上。
The most wonderful piece of machinery on show was Nasmyth's steam hammer.
其中最奇妙的是内史密斯的蒸汽锤。