three quarters of an hour

He dropped me at a hotel and we waited in the lobby for three quarters of an hour.

他把我载到了酒店，我们在大堂等了有四十五分钟。

A new book on the Titanic has suggested that the doomed liner did not send out a distress signal for three quarters of an hour after it hit the iceberg which ruptured its hull.

一本关于泰坦尼克号的新书说这艘毁灭的班轮在撞上毁坏船体沉没前的45分钟内冰山没有发出求救信号。

A youth who can't hit a cathedral at thirty yards with a Gatling gun in three quarters of an hour, can take up an old empty musket and bag his grandmother every time, at a hundred.

三刻钟内用加特林机枪在三十码处不能击中一个教堂的年轻人，却可以站在百码开外，举起一把空膛的旧火枪，趟趟把祖母当靶子击倒。