race n. group of people, animals, or plants 族类、种族、人种
a competition in which one tries to run, drive, etc. fastest and
finish first 竞赛、赛跑
adj.racial 种族的
radio n. (pl. radios) [C][U] an apparatus to receive sound broadcast
无线电、收音机。
on the radio 通过无线电广播=By using the radio
