Efficiency of boiler
[机] 锅炉效率
🧩 词语组成解析
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
🗣️ 情景例句
He's still not used to life in the city.
他仍然没有适应城市生活。
No root, no fruit.
没有根，就没有果。
an Englishman, Sir John Hawkwood, made the remarkable discovery that people would rather pay large sums of money than have their life work destroyed by gangsters.
人们情愿拿出大笔的钱，也不愿毕生的心血毁于歹徒之手。