Injection plunger
[化] 注射柱塞
🧩 词语组成解析
plunger
[['plʌndʒə]]
n. 跳水者, 潜水者, 活塞\\n[电] 活柱
🗣️ 情景例句
John is tied up at the present time.
John现在有事。
Some students quit school due to poverty.
一些学生因贫困而辍学。
Yes, I've got the information for all the computers now.
是的，现在我已弄到了所有有关电脑的情况。