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
Good, it's 122 over 80.
好 ，收缩压122 舒张压80。
I invited him to come over, but he wouldn't.
我请他过来，但是他不肯。
He will take part in an important race across the Atlantic.
他将参加一次重大的横渡大西洋的比赛。