Meaning
“Add up”是一个常用的英语短语动词，主要有两种常见用法。
第一种用法是指“加总”或“累加”。当你把几个数字或量相加时，可以用“add up”来表示。例如，当你把每天的花费相加，得到一个总数时，这个过程就是“adding up”。
第二种用法是指“合理”或“符合逻辑”。当事情看起来没有问题或能够解释得通时，可以说这些事情“add up”。例如，如果一个故事听起来很可信，你可以说“it adds up”。
理解这两个用法有助于在不同情境下正确使用“add up”，无论是在数学计算中，还是在判断事情是否合理时。
Today's Sentences
01
Ordering extras really adds up.
Situation
Can you check the receipt?
I think they overcharged us.
我觉得他们多收了我们的钱。
Let me add it up.
Two burgers, fries, drinks and dessert too.
两个汉堡、薯条、饮料，还有甜点。
Right.
I guess I conveniently forgot that part.
我想我很方便地忘记了那部分内容。
Yeah, ordering extras really adds up.
02
That doesn’t add up.
Situation
Hey, who finished the last slice of pizza?
Not me!
I only had two.
我只吃了两个。
Really? There were eight slices, and four of us.
That doesn’t add up.
这说不通啊。
Okay fine.
I might have “accidentally” eaten another slice.
我可能“无意中”又吃了一片。
Writer's Note
"Add up" is an intransitive, transitive, and inseparable phrasal verb.
- Intransitive - An intransitive verb does not need a receiver of the action which can end a sentence on its own.
Structure - "Subject + add up"
Example 1: His story doesn’t add up.
Example 2: The numbers just don’t add up, we must’ve made a mistake.
Example 3: It finally adds up now that I know the truth. - Transitive - Transitive phrasal verbs require an object to complete their meaning, while intransitive ones do not have an object.
Structure - "Subject + add up + object (numbers, amounts, costs, etc.)"
Example 1: Can you add up these receipts for me?
Example 2: She added up all her expenses from the trip.
Example 3: He quickly added up the figures in his head. - Inseparable - When an object cannot be placed between the particle and verb.
Structure - "Subject + add up (to + amount)"
Example 1: Those little expenses add up over time.
Example 2: All the hours she spent practicing really added up to success.
Example 3: The costs add up to more than we expected.
结构 - “主语 + add up”
例子 1: His story doesn’t add up.
例子 2: The numbers just don’t add up, we must’ve made a mistake.
例子 3: It finally adds up now that I know the truth.
结构 - “主语 + add up + 宾语（数字、金额、费用等）”
例子 1: 你能帮我把这些收据“add up”一下吗？
例子 2: 她“added up”了所有旅行的花费。
例子 3: 他迅速在脑海中“added up”了这些数字。
结构 - “主语 + add up (to + 数量)”
例子 1：这些小开销随着时间的推移逐渐“add up”。
例子 2：她花在练习上的所有时间最终真的“added up”到成功。
例子 3：这些费用“add up”超过了我们的预期。
Related words - Accumulate, calculate, compute, correspond, count, equal, make sense, measure up, mount up, tally, total
