71. at all, after all

　　at all 根本，全然;

　　after all 到底，毕竟，例：After all he is a child.

　　72. tall, high

　　tall 常指人或动物，例：He is tall.

　　high 常指物体。

　　73. fast, quickly

　　fast 侧重于指人或物体具有运动速度快的特点，例：run fast

　　quickly 侧重指某事完成或发生的快，例：answer the question quickly

　　74. high, highly

　　high 具体的高;

　　highly 抽象的高，高度的，例：think highly of

　　75. healthy, healthful

　　healthy 健康的，健壮的;

　　healthful 有益于健康的，例：healthful exercise