Expounder
n. 解释者
✅ 同义词
🗣️ 情景例句
So tell me about your educational history.
请告诉我你的教育经历。
When an opportunity is neglected,it never comes back to you.
机不可失，时不再来；机会一过，永不再来。
I have no idea.
我不知道。