racer
/ˈreɪsə(r)/noun
1
- an animal or means of transport bred or designed especially for racing（动物或交通工具等）参赛者; 赛车; 赛艇：
tall-masted ocean racers.
高桅杆海洋赛艇。
1.1
- a person who competes in races参赛选手。
1.2
- as modifier denoting an article of clothing that has a T-shaped back behind the shoulder blades to allow ease of movement in sporting activities.（服装）T背的。
2
- a fast-moving, harmless, and typically slender-bodied snake遊蛇。
2.1
- Several genera in the family Colubridae: genus Coluber, including the American C. constrictor and the European C. gemonensis (see also WHIP SNAKE), and the Asian genera Ptyas and Argyrogena (also called RAT SNAKE).遊蛇科中数属：遊蛇属, 包括美洲的遊蛇和欧洲的巴尔干纹蛇（参见WHIP SNAKE） 以及亚洲的鼠蛇属和银锦蛇属（亦称RAT SNAKE）。
3
- a circular horizontal rail along which the carriage or traversing platform of a heavy gun moves（重型火炮的）转台。