A quarter of all the people surveyed were don't-knows.

参加问卷调查的所有人中有四分之一没有表示明确意见。

He has the backing of almost a quarter of the electorate.

他有将近四分之一的选民的支持。

A quarter of current inmates have committed violent crimes.

四分之一的在押囚犯实施过暴力犯罪。

Within a quarter of an hour, the coldness of the night had gone.

一刻钟之内，夜晚的寒冷就消退了。

August registrations have gone ballistic, accounting now for a quarter of the annual total.

八月份的登记数量大涨，现在占全年总量的四分之一。