Definite integral
[计] 定积分
🧩 词语组成解析
🗣️ 情景例句
Where are the shopping carts?
购物车在哪儿？
Do you have any brothers or sisters?
你有兄弟或姐妹吗？
You'd better find it quickly. Oh, too late.
你最好赶快找到它。啊，太迟了。