Welsbach
burner韦耳斯拔煤气喷嘴
🗣️ 情景例句
Oh?
噢？
No, I only wrote her one letter this year.
是的，今年我才给她写过一封信。
Sure enough, a policeman arrived on the scene and politely asked the workmen to go away.
果然，警察来了，不礼貌地请工人离开此地；