多久的用法和樣例：
例句
-
你們結婚已經(jīng)多久了？
How long have you been married? -
我們的儲糧還能維持多久？
How long will our food supplies hold out? -
她懷孕多久了？
How long has she been pregnant? -
你已經(jīng)等候多久了？
How long have you been waiting? -
卸貨需要多久？
How long will the discharge of the cargo take? -
持續了多久？
How long did it last? -
到你家要多久？
How long will it take to get to your house? -
你在這里多久了？
How long have you been here?
