Poiser
平衡剂(氧化还原反应缓冲剂)
🗣️ 情景例句
She was playing with the idea of studying abroad.
她有出国留学的念头，但并非很认真。
On behalf of all the China National Packaging Import and Export Corporation employees invited tonight.
我代表被邀请的中国包装进出口公司全体员工。
I'm sorry, I don't know. You'd better ask that policeman.
对不起，我不知道。你最好问问那位警察。