C-1：call for 要求
A:I just mentioned a little disagreement, There's no call for you to get angry.
A：我只是提了点不同意见，你不必生气呀。
B:I can't see the point of your disagreement.
B：我真不明白你为何不同意。
A:I'm just wondering if it will benefit us all.
A：我只不过想知道是不是我们每个人都能受益。
B:That's exactly what I can assure you.
B：这一点我可以向你保证。
