... no less ... than ...
結構︰A+動詞+no less+B+than+C+動詞+D
說明︰此句型意為“A 是 B 和 C 是 D 一樣”。“no less ... than”等於“as ... as”，no less 之後可置<副詞>或 <形容詞>修飾。
A whale is no less a mammal than a horse is. 鯨魚和馬一樣都是哺乳動物。
He is no less clever than his elder brother. 他和他的大哥一樣聰明。
She is no less good at swimming than Mary. 她和瑪麗一樣擅長游泳。
His parents are no less happy over his engagement than he is (happy over his engagement).
他的雙親對他訂婚的高興並不亞於他自己。
He studies no less hard than John. 他和約翰一樣用功。
Associating with good friends is no less important to us than choosing good books.
交益友與選擇好書對我們同樣重要。
A good shirt is no less expensive than a jacket.一件好襯衫的昂貴程度並不比一件夾克衫差。
Sports wears, no less than suits, are very much saleable.運動服和西服套一樣，非常暢銷。

not more ... than ...
結構︰not more…than…
說明︰此句型意為“沒有比…更多;最多只是和…一樣”。等於“at best as ... as”。
She is not more beautiful than Mary. 她不比瑪麗美麗--頂多只是和瑪麗一樣美。
I was not more surprised than he (was). 我不像他那樣驚訝。
He is not more handsome than I. 他不比我瀟灑--頂多跟我一樣瀟灑。

not less ... than
結構︰not less ... than
說明︰此句型意為“沒有比…更少;至少與…一樣”。等於“at least as ... as”。
She is not less beautiful than Mary. 她至少和瑪麗一樣美麗。
He is not less interested in composing music than Jane. 他至少跟珍一樣對譜曲很感興趣。
He is not less handsome than I. 他至少跟我一樣瀟灑。

no more than ...
結構︰no more than+名詞
說明︰此句型意為“僅僅…”。等於“only+<名詞>”，強調稀少。
It will take no more than five days to read the book. 不到五天，我就會把這本書讀完。
It is no more than ten minutes’ walk from the station. 由車站走到這裡只有十分鐘的路程。
I had no more than 2 or 3 mistakes on my English assignment.
我的英文作業中只有兩三處錯誤。

no less than ...
結構︰no less than+名詞
說明︰此句型意為“多達…;足足有…之多”。等於“as many/much as ...”，強調多。
I received no less than ten thousand yen for my work. 我的工資多達一萬元。
The audience was no less than five thousand. 聽眾有五千人之多。
That hotel probably costs no less than 20 dollars a night.
那間旅館的住宿費大約要20元一晚呢。
No less than ten students flunked the exam. 整整有十位學生在這次考試中不及格。

not more than ...
結構︰not more than+名詞
說明︰此句型意為“最多不超過…”。等於“at most+<數詞>+<名詞>”。
It is not more than ten minutes’ walk from the station. 由車站走到這裡最多十分鐘的路程。
I’ll stay here not more than three days. 我將待在這裡最多不超過三天。
For safety’s sake, don’t drive more than 30 kilometers per hour in the city.
為了安全起見，在市內開車時速不要超過三十公里。

not less than ...
結構︰not less than+名詞
說明︰此句型意為“至少…”。等於“at least+<數詞>+<名詞>”。
The audience was not less than five thousand. 聽眾至少也有五千人。
I’ll stay here not less than three days. 我將待在這裡至少三天。
Though they think it takes no more than three days to fulfill the mission, I believe it takes not less than six days. 雖然他們認為完成這任務只需三天，但我卻認為至少需要六天。

at best + N
結構︰at best+名詞
說明︰此句型意為“充其量…;只不過是…”。等於“nothing but ...”。
Don’t expect much of him; he is at best a student. 不要對他期望過高;他只不過是個學生。
She is at best a second-rate singer. 她充其量是個二流歌手。
Don’t scold him too much; he is at best a child. 不要太責罵他;他只不過是個孩子。