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
He's upset over the fact that he wasn't promoted this year.
他对今年没有升迁感到恼怒。
It is clear that fish is bigger than others and wins the championship.
这一条明明比其他的大，而且会获胜的。
He passed his exams, and even better, when he left university he had earned enough money to start his own business, offering guide services to tourists.
他考试过关了，更惬意的是，他大学毕业时，所赚的钱足够他开始经营自己的行业--为游客提供导游服务。