tooth fairy

1. N-COUNT The tooth fairy is an imaginary creature. A child whose tooth comes out is told that if they put it under their pillow, the tooth fairy will take it away while they are sleeping and leave a coin in its place. 牙仙; 大人告诉孩子把脱落的牙齿放在枕下，牙仙会在他们睡着时把牙齿取走，留下硬币的故事[usu 'the' N in sing]

It has vanished as surely as one's belief in Santa Claus or the tooth fairy. 毫无疑问，人们对于圣诞老人或牙仙的信仰已经消失了。