Efficiency of the furnace
[化] 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];
the
[ðə]
art. 指已提到的人（物）;指说话人与听者已知的人（物）;用于独一无二的事物前;与形容词最高级和序数词连用;
🗣️ 情景例句
Don't forget to breathe.
别忘了呼吸。
We must make it clear from the very beginning that competitive quotations are acceptable.
必须一开始就讲清的是，有竞争力的报价可以接受。
Yes. I'd like to invite you to dinner at my flat before I move.
好的。我想在搬家前请你到我家吃饭。