7点45用英语怎么表达

7点45用英语是：a quarter to eight；

quarter：

n.四等份之一;(正点之前或之后的)15分钟，一刻钟;三个月时间;季度;季。

We surveyed 500 smokers and found that over three quarters would like to give up.

我们对500名吸烟者进行了调查，发现有超过四分之三的人愿意戒烟。

The theatre was about three quarters full.

剧场大约坐了四分之三的人。

A quarter of a million refugees roved around the country.

这个国家有二十五万难民流离失所。

We were moved to more comfortable living quarters.

我们搬进了较舒适的住处。

Cut the apple into quarters.

把苹果切成四块。

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