Berkeyite
开蓝石
🗣️ 情景例句
We will also need a letter of recommendation.
我们还要求一封推荐函。
The mountains have brought forth a mouse.
大山生小鼠（指：费力大而收效小）。
Ah yes, I can see it now.
噢，是啊，我现在看到了。