no less than 与not less than 
no more than 与not more than区别
no less than不亚于，竟达……之多(≥)
1)The audience was no less than five thousand. 听众有五千人之多。
2)That hotel probably costs no less than 20 dollars a night. 那间旅馆的住宿费大约要20元一晚呢。
not less than不比……差，至少 (≤)
1)I'll stay here not less than three days. 我将待在这里至少三天。
no more than同样不；仅仅，只有 (=)
1)He is no more than a worker. 他仅仅是个工人。
2)It's no more than a misunderstanding. 这只是个误会。
3)It is no more than ten minutes' walk from the station. 由车站走到这里只有十分钟的路程。 not more than不比……更，不如；至多 (≤)
1）He is not more diligent than you are.他不象你那样勤奋。（重点在 you are diligent 。他也勤奋，但不如你勤奋。）
2)I'll stay here not more than three days. 我将待在这里最多不超过三天。
no less .. than不少于,不亚于(≥)less is more代言人
1) He is no less a person than a minister他的身分不亚于部长。
not less than至少和…一样
1)She is not less beautiful than Mary她至少和玛丽一样美丽。
 
记忆这两个短语的意思的时候，最好要抛开汉语的影响，而用英语去解释英语
no less than = as many / much as ；
no more than = as little / few as
因此翻译汉语的时候，no less than 要翻译成 “不比。。。。。。少”，而 no more than 则要翻译成 “不比。。。。。。多”， 更多的时候no more than 直接翻译成“仅仅”就可以了。
（no + 某形容词 / 副词的比较级 + than 可以看成是 as + 某形容词 / 副词的反义词的原级 + as 结构）。
比如 no easier than =as difficult as 不比。。。。。。简单， 像。。。。。。一样难）
理解这两个短语的时候一定要与not less than 及not more than 区分开，not less than要翻译成“不少于”也就是说是“大于等于。。。。。。”的关系，not more than 则翻译成“不多于”， 也就是说是“小于等于。。。。。。”的关系。 翻译：
She is not less active than she used to be.这是一个老师的答案，来自互联网，比较全面。如下：
【no less than】
说明︰此句型意为“多达…；足足有…之多”。等于“as many／much as ...”，强调多。
I received no less than ten thousand yen for my work. 我的工资多达一万元。
The audience was no less than five thousand. 听众有五千人之多。
That hotel probably costs no less than 20 dollars a night.
那间旅馆的住宿费大约要20元一晚呢。
No less than ten students flunked the exam. 整整有十位学生在这次考试中不及格。
【not less ... than】
说明︰此句型意为“没有比…更少；至少与…一样”。等于“at least as ... as”。
She is not less beautiful than Mary. 她至少和玛丽一样美丽。
He is not less interested in composing music than Jane. 他至少跟珍一样对谱曲很感兴趣。
He is not less handsome than I. 他至少跟我一样潇洒。
【no more than】
说明︰此句型意为“仅仅…”。等于“only＋<名词>”，强调稀少。
It will take no more than five days to read the book. 不到五天，我就会把这本书读完。
It is no more than ten minutes’ walk from the station. 由车站走到这里只有十分钟的路程。
I had no more than 2 or 3 mistakes on my English assignment.
我的英文作业中只有两三处错误。
【not more…than…】
说明︰此句型意为“没有比…更多；最多只是和…一样”。等于“at best as ... as”。
She is not more beautiful than Mary. 她不比玛丽美丽－－顶多只是和玛丽一样美。
I was not more surprised than he (was). 我不像他那样惊讶。
He is not more handsome than I. 他不比我潇洒－－顶多跟我一样潇洒。
【at (the) most】 至多
It will take two hours at most to get there.
最多两小时便可到达那里。
【at (the) least】至少
He smoked at least half a packet of cigarettes a day.
他每天至少抽半包烟。
最后我的译文如下：
She is no less active than she used to be. 她至多和从前一样活跃。
She is not less active than she used to be. 她至少和从前一样活跃。
说明：结合一定的语境，句子译文可以去讲求灵活。限于句子语境范围有限等原因，这里的译文很是生硬，但尽量做到“忠实”，使信息尽量最大可能完全和对等。
more& 与more ...than ...
    more than 与more …than 短语在英语中使用得十分广泛。其用法和意义并不简单，一不留神就可能用错。因为more than 与more …than 除了具备其基本用法外，还有些特殊用法。理解和翻译时要特别小心，不能一看到more than就简单地按照字面上的意思将其理解为“比……更……”或“超过”等，而是要根据上下文出more than 短语的确切含义，只有这样才不至于贻笑大方。
     more than 相当于一个形容词或副词短语，在句中作定语或状语，修饰其后的动词、副词、数词或名词等。
一.   more than 的用法
1. more than 后跟数词，相当于over，翻译成“……多、超过……”等，强调某物数量上超出某一范围。
    More than 1,500 people were killed in the earthquake. 地震中有一千五百多人遇难。
    I have collected more than 3 hundred stamps so far. 到目前为止，我已收集了300多张邮票。
    I’ve known him for more than 20 years. 我认识他已经二十多年了。 
    Their college enrolled more than five hundred new students this year. 他们学院今年招收了五百多名新生。
2. more than 后跟名词或动名词，相当于over, not just, not only，表示“不只是、不仅仅是”等。例如：
She is more than a teacher to us, she is our friend. 他不只是教师，她还是我们的朋友。
Hibernation is more than sleep. 冬眠不仅仅是睡眠。
Wood is used for more than building. 木头不仅仅用于建筑。
Blood is much more than the simple fluid it seems to be. 血液不仅仅是一种外表似乎简单的液体。
My trip to Beijing is more than sightseeing. 我去北京不仅仅是旅游观光。
I like autumn more than summer. 我喜欢秋天胜过夏天。
He is more than a soldier. He is simply a hero. 他岂止是个战士，简直是个英雄。
注：more than one意为“不止一个”，若用作主语，谓语用单数；more +复数名词+than one做主语时，谓语用复数。例如：
More than one teacher has been to Australia in this college. 这所学院的教师中，不止一人去过澳大利亚。
More ships than one were damaged in the storm. 不止一艘轮船在这次暴风雨中受损。
More than one book has been translated into foreign languages. 不止一本书被译成了外语。