Aeschynite
易解石
🗣️ 情景例句
you need to work at it, Grandpa.
你得常练它， 爷爷。
When I was informed of the announcement of my nomination.
当获知我已被提名时。
Many firms, for instance, have great difficulty in obtaining technical or scientific books from libraries
比如，很多公司向图书馆借阅科技书籍时感到很困难，