Eng: How long

How long ago

有多久

How long before all of this happens

這些事多久後會發生

How long before this happens

這些事多久後會發生

How long did I sleep

我睡了多久

How long does it take

要多久

How long has it been

有多久

How long it takes

要花多久時間

How long since

多久

有多久

How long till daybreak finally arrives

到底什麼時候才天亮

How long was I asleep for

我睡了多久

How long was I out

我睡了多久

How long would it last

撐得了多久

How long would it take

要多久