Vacuum heater
[化] 真空加热器
🧩 词语组成解析
🗣️ 情景例句
A good medicine tastes bitter.
良药苦口。
I'll call the roll before class.
课前我要点名。
A match was held at Stilton, where both men fought for an hour.
于是两人在斯蒂尔顿设下赛场，厮打了一个小时。