这里的by the time相当于at the moment when,在.时候.
by the time常用作“在.之前”,那就要与完成时连用,如:
by the time you came into the room,we had already decided what to do.
这里的by the time相当于at the moment when,在.时候.
by the time常用作“在.之前”,那就要与完成时连用,如:
by the time you came into the room,we had already decided what to do.