Polycrystal
n. 多晶体\\n[化] 多晶
🗣️ 情景例句
During your computer classes, did they teach you how to fix a cooling fan?
在你的电脑课程，他们是否教过你如何修理散热风扇？
Just wait and see.
你等着看好了。
Instead of being five new family members, these children had immediately become a commodity.
这些孩子立即成了商品，而不是5个新的家庭成员。