Definite integral
[计] 定积分
🧩 词语组成解析
🗣️ 情景例句
This show is terrible; whoever's in charge needs to make some big changes.
这场演出很糟糕，主事的人应该对此做重大调整。
An hour in the morning is worth two in the evening.
一日之计在于晨。
The most wonderful piece of machinery on show was Nasmyth's steam hammer.
其中最奇妙的是内史密斯的蒸汽锤。