Interval integral
[计] 区间积分
🧩 词语组成解析
🗣️ 情景例句
Yes, my husband did call.
是的， 我丈夫打过电话。
David would get up early in the morning to deliver newspaper.
戴维一早起床就去送报纸。
It's only three hundred pounds. But, of course, it's not as good as the expensive one.
它只要300英镑。但是，它当然没有价钱高那种好。