Polycrystallinity
多晶性, 多晶結晶度
??? 情景例句
Oh, I'd like you to meet my sister-in-law Marilyn.
噢 我來向你介紹我嫂子Marilyn。
The student felt very shy as he stood in front of the class.
那個學生站在大家的跟前時，感到非常難為情。
Workers will have completed the new roads by the end of this year.
工人們將在今年年底前把新路鋪好；