Sources
n. 输入源；发起者；来源（source的复数）
🗣️ 情景例句
It was nothing.
这不算什么。
None knows the weight of another's burden.
看人挑担不吃力。
At lunchtime, the tourist thanked him and gave him ten pounds, which was a lot of money in those days.
午餐时，这位游客向他表示感谢，并给了他10英镑。这在当时可算是一大笔钱了。