make a sustained effort or make sustaining efforts英语专业人士请进在词汇书上不同的两页看到这两种表达方式make a sustained effort ,make sustaining efforts,哪个对还是两个都对?是不是单数只能用sustained,复数

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make a sustained effort or make sustaining efforts英语专业人士请进在词汇书上不同的两页看到这两种表达方式make a sustained effort ,make sustaining efforts,哪个对还是两个都对?是不是单数只能用sustained,复数
make a sustained effort or make sustaining efforts英语专业人士请进
在词汇书上不同的两页看到这两种表达方式make a sustained effort ,make sustaining efforts,哪个对还是两个都对?
是不是单数只能用sustained,复数只能用sustaining,两者在意思上有没有差别呢?

make a sustained effort or make sustaining efforts英语专业人士请进在词汇书上不同的两页看到这两种表达方式make a sustained effort ,make sustaining efforts,哪个对还是两个都对?是不是单数只能用sustained,复数
make a sustained effort 表示“这个努力已经付出”,也就是“已经努力过了”如：Don’t be too hard on him,he has made a sustained effort.
孤独的沉思者 14:01:47
sustaining呢?正在付出?那就是和单复数没有关系啦?
第47个浪人 14:01:55
而make sustaining efforts 表示一种未来的持续努力的意思
第47个浪人 14:02:21
既然是持续的,当然是个复数概念
第47个浪人 14:03:15
如：Make sustaining efforts,and you can gain higher marks

make a sustained effort or make sustaining efforts英语专业人士请进在词汇书上不同的两页看到这两种表达方式make a sustained effort ,make sustaining efforts,哪个对还是两个都对?是不是单数只能用sustained,复数 sustained as a result of an infringement a period of sustained economic developmenta sustained attack on the government ](eff)mother is a techer.用所给的单词适当形式填空 matlab中eff是什么 2020______,I suppose,and the housing problems for the low-income families could be solved.20______,I suppose,and the housing problems for the low-income families could be solved.A.If you double your efforts B.To make some more efforts C.Some more eff 英语翻译1.The Wright brothers left gravity behind and flew the world's first power-driven,heavier-than-air machine in which man made free,controlled,and sustained flight.2.Doesn't it make you feel mean to think what a happy time we had this morni sustained release是什么意思 make a make a make a make a make a make a make a make a make a Make a