Thermal efficiency
[化] 热效率
🧩 词语组成解析
🗣️ 情景例句
My dear little boy just looked up at me as if to say,
我亲爱的小男孩只是仰头看着我 ，好像在说，
He will always be a slave who knows not how to earn and save.
不懂挣钱和积财，只能永远当奴才。
Yes.
是。