R
1.race:
① 竞赛(n.) a horse-race
② 种族(n.) people of mixed race
2.raise:
① 提高、举起(vt.) Raise your voice to make yourself heard.
② 饲养；
抚养(vt.) My mother raised pigs at the countryside.
③ 筹集；
集资(vt.) The man raised money to build a primary school..
3.room （熟义：
n. 房间 ）n. 空间
There is no room for so many people.
4.rough:
① 粗糙的（adj.）Touch the ball and tell me whether it is rough or smooth.
②艰辛的（adj.）Life is rough.
5.run （熟义：
v. 跑，行驶 ）v. 经营，管理；
He has no idea of how to run a successful business. 他不知道把企业办好的方法。
6.regular:
① 规则的（adj.）The man does regular exercise to keep fit.
② 定期的、定时的（adj.）He goes to work by regular bus.
③ 照例的、经常的（adj.）Mary is a regular customer in the shop.
7.realize:
① 认识到(vt.) Only then did I realize I was wrong.
② 实现(vt.) He realized his dream of being a doctor.
