less的用法例句：
1.These files have been zipped up to take up less disk space.
這些文檔已經進行了壓縮，以節省磁盤空間。
2.He is lined up for no less than four US television interviews.
多達4家美國電視媒體排期邀請他上節目接受采訪。
3.Other amenities, less commonly available, include a library and exercise room.
還有一些不太常有的設施，包括圖書館和健身房。
fewer例句
1、There are no fewer than 100 different species in the area.
這個地區有不少于100個的不同物種。
2、Fewer people write with their left hand than with their right.
用左手寫字的人比用右手的人少。
3、Fewer people desire to live in the north of the country.
想住在這個國家北方的人就更少了。