Vacuum bulb
[电] 真空灯泡
🧩 词语组成解析
bulb
[bʌlb]
n. 球茎，块茎植物;电灯泡;[解剖学]肿块;
🗣️ 情景例句
I'd like to rent a car, please. I need it for business.
我想租一辆汽车，是为了业务上的需要。
How much does packing take up of the total cost of the goods?
包装占货物总成本的百分比是多少？
Aren't you lucky!
你们真幸运！