Borocalcite
硼钙石
🗣️ 情景例句
And I am a hard worker when I have something challenging to do.
并且在遇到挑战性的工作时，我是个很努力的人。
Whom will you write to?
你将写信给谁？
Excuse me. What's your full name, please?
请问，您的全名是什么？