1. The muscles will ply the short wings with irresistible power.
    这肌肉不断地给短翅膀提供非常坚强的力量.

2. And these will ply the short wings with such irresistible power that they can bore for long distances through an opposing gale before exhaustion follows.
    这些肌肉以巨大的力量扇动短小的翅膀，使这类鸟能顶着大风飞行很远的路才会疲劳。