at least 和more than 的具体用法，可以举例说明吗

at least 和more than 的具体用法，可以举例说明吗

副词一般都用来修饰动词,且放在动词后面.举个例子,Here are at least fifty students in the class,这里至少有五十个学生在这间教室里头.at least就用来修饰BE词are.

简单说: 1.From here to the bus stop you need ten minutes walking at least. 从这儿到公交车站你至少需要步行十分钟; 2.From here to the bus stop you need more than ten minutes walking. 从这儿到公交车站你需要步行十分钟以上;

less少，用于比较least最少（最高级）3者以上最。。。这两个用于不可数。fewer（比较级）用于可数。more更多（用于比较）most最多（最高级）

at least 英[æt li:st] 美[æt list] adv. 至少; [词典] 无论如何，反正; [例句]He's been away for at least a week. 他走了总有一个星期吧。 at least anyhow； at the lowest estimate至少；起码 The dictionary costs at least 50 yuan．这本词典至少要花50元。 I had not seen him for at least a week．我至少有一周没看见他了。 more than 用法归纳 (1) 多于(其通常后接数词，也可接其他词)。如： I’ve known him for more than twenty years. 我已认识他 20多年了。 Mary bas been ill for more than a week. 玛丽已病了一个多星期了。 He spends more than he earns. 他花的比挣的多。 He paid more than the usual rate. 他比通常的价格付得多。 It was more than flesh and blood could bear. 这是血肉之躯无法忍受的。 The accounts show we have spent more than we received. 账目显示我们支出大于收入。 The series has attracted an audience of more than 10 million. 这个系列片吸引了1 000多万观众收看。 (2) 不只是，不仅仅是(通常后接名词、动词、从句等)。如： He is more than a father to her. 他待她胜过父亲。 He more than smiled, but laughed. 他不只是微笑，而是放声大笑。 The result was much more than I imagined. 结果远远超过我的想像。 Her work involved more than administration of first aid to the wounded. 她的工作不仅仅是对伤者的急救。 (3) 极其，非常(通常后接形容词、副词或分词等)。如： She was more than kind to us. 她对我们很友好。 He was more than upset by the accident. 这个意外事故使他非常心烦意乱。 (4) 难以，完全不能(其后通常连用情态动词 can)。如： That is more than I can tell(=I can’t tell that). 那事我实在不明白。 注：与动词 like, love 等连用，还可表示”更“”更加“。如： I like tennis more than I like football. 与足球相比，我更喜欢网球。