Pentaborate
五硼酸盐
🗣️ 情景例句
Can you tell me where the tourist sites are located?
你能告诉我本地有什么旅游名胜吗？
When did you come to see me?
你什么时候来见我？
Hello.Where you at the butcher's?
您好。刚才您在肉店里吗？