515. say hello/yes/no/thanks/sorry to sb. 向…...问候
514. rush out 冲出去
S
513. run off 跑掉
512. run out of 用完
511. run after 追赶
510. run away 跑开,流失,逃走
509. regard…as…把…当作…
508. rather than 宁可
507. ring up 给某人打电话
506. ring sb. (up) 给某人打电话