add up

US /æd ˈʌp/
UK /æd ˈʌp/
"add up" picture
1.

说得通, 合乎情理

to make sense; to seem reasonable or logical

:
His story just doesn't add up.
他的故事就是说不通
The numbers don't add up, there must be a mistake.
这些数字不对劲,肯定有错误。
2.

加起来, 计算总和

to calculate the total of several numbers or amounts

:
Can you add up these figures for me?
你能帮我这些数字加起来吗?
We need to add up the expenses for the trip.
我们需要计算旅行的费用。