sum total noun
Learner's definition of SUM TOTAL
the sum total
: the whole amount : the entire total of something总数；总共；总额 —
usually + of -
The sum total of the payments will be $28,000.支付款项总计28000美元。
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That's the sum total of what I know about cars. [=that's all I know about cars]这就是我对汽车的全部了解。