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spend和expend作名词时的区别?expend较正式用词，通常指为某一专门目的而花费大量金钱、时间或精力。花钱、花时间，用spend.You dont need to spend that mu...

Expend expense 花费支出；花钱 expend是动词,花费的意思；expense是名词,也是花费的意思,...