the tooth fairy
noun /ðə ˈtuːθ feəri/
/ðə ˈtuːθ feri/
[singular]- an imaginary creature that is said to take away a tooth that a small child leaves near his or her bed at night and to leave a coin there in its place
牙仙子（传说会取去幼儿脱落并放于床边的乳齿，在原处留下一枚钱币）