Berkeyite
开蓝石
🗣️ 情景例句
Whose woods these are I think I know.
这是谁的林子， 我想我知道。
Why was only he exempted from work?
为什么只有他不必工作呢？
Compared with competing products, ours is smaller and lighter.
比起其它竞争产品，我们的比较轻巧。