add up

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

說得通, 合乎情理

to make sense; to seem reasonable or logical

:
His story just doesn't add up.
他的故事就是說不通
The numbers don't add up, there must be a mistake.
這些數字不對勁,肯定有錯誤。
2.

加起來, 計算總和

to calculate the total of several numbers or amounts

:
Can you add up these figures for me?
你能幫我這些數字加起來嗎?
We need to add up the expenses for the trip.
我們需要計算旅行的費用。