sleeping giant

• 1. 

  N-COUNT If you refer to someone or something as a sleeping giant, you mean that they are powerful but they have not yet shown the full extent of their power. 沉睡中的巨人; 指力量巨大但没有充分展示其威力的人 [journalism]

  例：

  The trust, which has 2.3 million members, has been characterized as a sleeping giant of the environment movement.

  这个拥有 230 万会员的信托基金会被描述为环保运动的一头睡狮。