Vacuum heater
[化] 真空加热器
🧩 词语组成解析
🗣️ 情景例句
He says I never turn them out when I leave.
他说我离开时从不关灯。
We may be able to help you in some way.
我们也许能在某些方面帮助你。
He's doing well in all his lessons. He's not lazy. He'll do very well in the exams.
他各门功课都学得很好。他从不懒。他考试会考得很好的。