Flight is the form of locomotion that puts the greatest demands on muscles...飞行是对肌肉要求最高的运动形式。...the subatomic particles that form the basis of nearly all matter on earth.构成地球上几乎所有物质的基础的亚原子粒子'Data' is the Latin ...
She flashed him a despairing glance.她绝望地瞥了他一眼.He flashed her a despairing glance.他绝望地瞥了她一眼.He received the news with a despairing sigh.他得到消息,绝望地叹了口气....