Pure profit
[经] 纯利润
🧩 词语组成解析
🗣️ 情景例句
That'll be thirty-six dollars, sir.
先生，车费是36元。
I seldom write a letter.
我很少写信。
But instruments far more delicate than that were needed if any really serious advance was to be made.
但是，如果要取得真正重大的进展，需要有比这种装置精细得多的仪器。