Sparkplug
vt. 倡导, 激励\\nn. 火花塞, 中坚
✅ 同义词
🗣️ 情景例句
I received a letter from my parents this morning.
今天早上我收到父母一封信。
No, thank you.
不，谢谢您。
He has never borrowed money from me.
他从未向我借过钱。