Cusum
abbr. 累积和；累积和控制图（cumulative sum）
🗣️ 情景例句
The only entry requirement is a valid passort.
入境的唯一条件就是持有一本有效的护照。
You'll break it, if you don't take care.
你不专心的话，就会打破。
We must stress that these payment terms are very important to us.
我们必须强调这些付款条件对我们很重要。