Polycrystalline
a. 多晶的\\n[计] 多晶的
🗣️ 情景例句
I'm sure glad you're here, Grandpa.
您来这里我真高兴， 爷爷。
It doesn't make any difference.
都一样。
It's nearly ready.We can have dinner at seven o'clock.
马上就好。7点钟我们可以吃饭。