When modifying plural countable nouns, use "Shao", such as people, houses, children, students, etc.

People buy less and less newspapers now.

Nowadays people buy fewer and fewer newspapers.

When modifying uncountable nouns, use less, such as money, air, time, music, rain, etc.

It's a better job, but they pay you less.

This is a more suitable job, but the salary is lower.

2, the original level is different

The less the original level, the less the original level.

3, the use of different occasions

Use less, not less: in the use of numerals (commonly used comparative), such as the use of units of measurement or the expression of time.

His weight dropped from 18? Stone? Less than 12.

His weight dropped from 18 stone to less than 12 stone.

Extended data

Usage of lesser (small comparative)

1, adjectives are smaller and fewer (placed before nouns; Indicates smaller size, value, importance, etc. , not used with than). ?

Little known is not very famous.

For example: red panda.

3.less (small comparative degree) (quantity and degree); Smaller (of value, etc.) is usually used with than.