fast,rapid,quick,这组词都有“快的”意思。 fast和rapid虽然有时可以互换使用，但它们有差异，fast强调物体进行相对运动。如a fast horse, a fast train. fast可做副词 The winning car reached a speed of forty miles——much faster than any of its rivals. 获胜...
fast,rapid,quick,这组词都有“快的”意思。 fast和rapid虽然有时可以互换使用，但它们有差异，fast强调物体进行相对运动。如a fast horse, a fast train. fast可做副词 The winning car reached a speed of forty miles——much faster than any of its rivals. 获胜...