in和within的区别Scientists say Parkin's new computer memory could begin to replace flash memory (in) three to five years括号的in可以用within替换吗,为什么

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in和within的区别Scientists say Parkin's new computer memory could begin to replace flash memory (in) three to five years括号的in可以用within替换吗,为什么
in和within的区别
Scientists say Parkin's new computer memory could begin to replace flash memory (in) three to five years括号的in可以用within替换吗,为什么

in和within的区别Scientists say Parkin's new computer memory could begin to replace flash memory (in) three to five years括号的in可以用within替换吗,为什么
一段时间觉得还是得用in,不能用within,还要看一下原文的意思,这2个词的确不好分
表达时间,这两个介词有着这样一个区别：前者是指期限之外,而后者则是指期限之内；而且由后者引导的短语总是用于一般将来时态,而前者无此限制（注：美国英语往往使用inside of来代替后者）.
比较：Mrs Gray will return in a week''s time．格雷太太将在一星期以后回来.
Mrs Gray will return within a week''s time．格雷太太将在一星期之内回来.
2．引导抽象名词,两者都可使用,只是所含义蕴不全一样,而且,前者不如后者强势.试举例来说明.
例如：in one''s power；in one''s grasp,etc．
within one''s power；within one''s grasp；etc．
比较：It is in my grasp．这我可以办到.（说明事实）
It is within my grasp．这我可以办到.（说明职权）

within 和in的区别如题 within和in怎么区别? within与in的区别! in an hour和within an hour的区别 within和without的区别 within和in有什么区别 within 和in有什么区别 within和inside之间的区别是什么? in和with的区别I will see you in a week 与 I will see you within a week请问 in a week ,within a week 有什么区别这两句话是一个意思吗 within 60 days of arrival 和within 60 days after arrival的区别 no more than和within的用法和区别 within and in 区别是什么?详细介绍一下within in和within的区别Scientists say Parkin's new computer memory could begin to replace flash memory (in) three to five years括号的in可以用within替换吗,为什么 bofore、within、from和by的区别为什么 within与in的区别两者好象都表示.里面两者到底有什么区别英语：In ten minutes 和Within tem minutes 有什么区别? 英语单词小区分in 和within有什么区别,我怎么觉得2个没区别呢?比如说buy it within 20 minutes 和用in 应该没区别吧, within budget 与 under budget 的区别