名詞 tails:

1. formalwear consisting of full evening dress for men
   同義詞：dress suit, full dress, tailcoat, tail coat, white tie, white tie and tails

名詞 tail:

1. the posterior part of the body of a vertebrate especially when elongated and extending beyond the trunk or main part of the body
   同義詞：tail
2. the time of the last part of something
   同義詞：fag end, tail, tail end
3. any projection that resembles the tail of an animal
   同義詞：tail, tail end
4. the fleshy part of the human body that you sit on
   同義詞：buttocks, nates, arse, butt, backside, bum, buns, can, fundament, hindquarters, hind end, keister, posterior, prat, rear, rear end, rump, stern, seat, tail, tail end, tooshie, tush, bottom, behind, derriere, fanny, ass
5. a spy employed to follow someone and report their movements
   同義詞：tail, shadow, shadower
6. (usually plural) the reverse side of a coin that does not bear the representation of a person's head
   同義詞：tail
7. the rear part of an aircraft
   同義詞：tail, tail assembly, empennage
8. the rear part of a ship
   同義詞：stern, after part, quarter, poop, tail

動詞 tail:

1. go after with the intent to catch
   同義詞：chase, chase after, trail, tail, tag, give chase, dog, go after, track
2. remove or shorten the tail of an animal
   同義詞：dock, tail, bob
3. remove the stalk of fruits or berries
   同義詞：tail

1. Dogs wag their tails when they are pleased.
   狗一高興就搖尾巴。
2. Some breeds of dog have only rudimentary tails.
   有些品種的狗尾巴只有退化的部分。
3. "Let's toss for it. Heads or tails?" "Heads." "Heads it is."
   "咱們擲幣來決定吧。你要正面還是反面？""正面。""不錯，是正面。"
4. If I say "heads I win; tails you lose", I will win whatever happens.
   如果我說：“正面我贏; 反面你輸”, 那么無論怎樣，我都會贏。
5. Let's flip a coin to decide who should go first - do you want heads or tails?
   我們來拋硬幣決定誰先走吧，你是要正面還是要反面？