a)HMNCOUNT/CALCULATEto calculate the total of several numbers (把…)加起来
I can add up in my head quite easily.
我做心算加法很轻松。
add something ↔ up
Specialized software adds up the statistics.
专用软件合计统计数据。
b)not add up
i.if a set of facts does not add up, it does not provide a reasonableexplanation for a situation 不合情理,说不通
He was troubled by a feeling that things just didn’t add up.
他很苦恼,觉得事情不对劲。
ii.if sums, numbers etc do not add up, there is a mistake in them 〔总数、数字等〕错了,有误
These figures don’t add up.
这些数字错了。
c)it all adds up informal used to say that lots of small amounts gradually make a large total 积少成多
There are five of us using the phone so it all adds up.
我们五个人用电话,所以就打得很多了。
Examples from the Corpus
add up• Five percent may not sound like much but it's a lot of money when you add it all up.• I can see now that George was planning this all along - it all adds up.• When we added up the receipts we realized we had spent too much.