fewer

I take fewer (and fewer) vacations every year.我度假的次数一年比一年少。

He teaches (many) fewer classes than I do.他教的课比我少（得多）。

Fewer came than were expected.来的人比预期的要少。

Few know and (even) fewer care about local history.没有多少人知道当地历史，关心的人就更少了。

Fewer than 50 percent of registered voters turned out for the primary.不足50%的登记选民参加了初选投票。