ph.
1. - see add 2
2. 合乎情理；说得通
If facts or events do not add up, they make you confused about a situation because they do not seem to be consistent. If something that someone has said or done adds up, it is reasonable and sensible.
3. 积少成多；聚沙成塔
If small amounts of something add up, they gradually increase.
1. determine the sum of
e.g. Add all the people in this town to those of the neighboring town
Synonym: totaltottot upsumsum upsummatetote upaddadd togethertally
2. be reasonable or logical or comprehensible
Synonym: make sense
3. develop into
e.g. This idea will never amount to anything
nothing came of his grandiose plans
4. add up in number or quantity
e.g. The bills amounted to $2,000
The bill came to $2,000