tail [teɪl]
1. 名词 [c] [of animal] 尾巴
2. 名词 [of plane] 尾部
3. 名词 [of shirt, coat] 下摆
4. 及物动词 [+person, vehicle] (follow) 尾随
5. 复数 [c] tails (formal suit) 燕尾服
to turn tail (and run) 掉头(逃跑) "heads or tails?" - "tails" “正面还是背面？” “背面”
参考资料：http://www.nciku.com/search/en/detail/tail/1713531