Welsbach
burner韦耳斯拔煤气喷嘴
🗣️ 情景例句
Now he's got his own trading company. Ann told me he made four million dollars last year.
现在他已有自己的贸易公司。安告诉我他去年赚了400万美元。
He's a student.
他是学生。
There are many stars in the sky.
天上有很多星星。