辨析sum和summary

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辨析sum和summary
辨析sum和summary

辨析sum和summary
1.sum 可以作名词,(作名词时意思是“合数,总计”),也可以作动词(是不及物动词,常和up 连用).例如:
The sum of 5 and 3 is 8.(名词)
They want to sum up their past experience before going on.(动词)
2.summary 可以作形容词,(作名词时意思是“摘要,概略”),也可以作名词.例如:
He presented a summary account.(形容词) 他概括地说明.
Give a summary of this chapter.(名词) 列出这一章的摘要.