Knob insulator
[电] 捻头绝缘器
🧩 词语组成解析
knob
[nɑb]
n. 球形把手;（收音机等的）旋钮;小块;疙瘩;
v. 鼓起;使有球形突出物;给（门等）装球形把手;
insulator
['ɪnsəletɚ]
n. 绝缘，隔热或隔音等的物质或装置;隔离者;隔离物，隔振子，隔电子;
insul岛屿+ator表示人或物 → 像岛一样的人或物 → 把...隔开 → 隔绝者，绝缘体
🗣️ 情景例句
I can't believe this is really happening!
我不敢相信这一切真的发生了
Don't forget to put stamps on the letter before you mail it.
不要忘记在寄信以前把邮票贴在信封上。
Burglar alarms going off at any time of the day or night serve only to annoy passers-by and actually assist burglars to burgle.
防盗警报器在白天和黑夜的任何时候都会响起来，它的作用只是骚扰过路行人，而实际上却帮助窃贼入室行窃。