less的用法例句：
1.These files have been zipped up to take up less disk space.
这些文档已经进行了压缩，以节省磁盘空间。
2.He is lined up for no less than four US television interviews.
多达4家美国电视媒体排期邀请他上节目接受采访。
3.Other amenities, less commonly available, include a library and exercise room.
还有一些不太常有的设施，包括图书馆和健身房。
fewer例句
1、There are no fewer than 100 different species in the area.
这个地区有不少于100个的不同物种。
2、Fewer people write with their left hand than with their right.
用左手写字的`人比用右手的人少。
3、Fewer people desire to live in the north of the country.
想住在这个国家北方的人就更少了。