by the time

• 及至敌人赶到，游击队已经无影无踪了。

  By the time the enemy arrived, the guerrillas had disappeared without a trace.

• 及至清晨，同志们才从水库回来。

  It was early morning before the comrades returned from the reservoir.

• 及至傍晚，工作仍未完成。

  The work was still not finished by the time it was getting dark.