less

详细解释:n. 较少, 较小
a. 少的, 小的
ad. 较少, 较小, 较差
【计】最低成本估算与调度法
相关词组:
no less than
not less than
less and less
none the less
less but better
any the less
in less than no time
no less a person than

词意辨析：

less, lesser

这两个词都是little的比较级，都可指“较少”或“较小”。less偏重于“not so much”的意思，lesser偏重于“not so great或smaller、minor、lower”的意思。它们都可用于数量、重量、程度、重要性、价值等方面，但在用法及跟其他词语搭配上有很大不同，二者不能互换。
less: 所修饰的名词是不可数的，且没有冠词在前；less可带than，并指二者或多于二者的比较；i received less pay than he.
我收的薪金比他少。i want less sugar for my coffee.
我的咖啡要加少些糖。these days，i eat less rice than i used to.
近来我吃饭比以前少。
lesser: 不用than，而用of，并只限于二者的比较；涉及程度、价值、重要性等方面时，一般用lesser（指 smaller，not so great，minor，lower）。i prefer a lesser amount of meat.
我选择较少量的肉食。rice and wheat are two staple foods in china．in the north，rice is the lesser of the two.
米和小麦是中国的两种主要食粮。在北方，米较小麦为次要。

英语解释：

形容词 less:

(comparative of `little' usually used with mass nouns) a quantifier meaning not as great in amount or degree(usually preceded by `no') lower in quality(nonstandard in some uses but often idiomatic with measure phrases) fewer