Hollow-cathode tube
[电] 空心阴极管
🧩 词语组成解析
hollow
['hɑlo]
adj. 空的;空洞的;虚伪的;空腹的;
n. 洞，坑;山谷;
vt.& vi. 挖空（某物），变空;挖出（孔、洞）;
adv. 完全，彻底;
cathode
[['kæθəud]]
n. 阴极\\n[化] 阴极
🗣️ 情景例句
It's been an extremely hectic day.
今天忙的乱七八糟。
We can't afford the expense.
我们不能付出那些花销。
We had roast beef and potatoes.
我们吃的是烤牛肉和土豆。