Examples
他到了四時以後才有空。
He wouldn't be available until four.
Source: Tatoeba
他們在四時抵達了酒店。
At four o'clock, they arrived at the hotel.
Source: Tatoeba
He wouldn't be available until four.
Source: Tatoeba
At four o'clock, they arrived at the hotel.
Source: Tatoeba