我的一颗奶白色的、不大点的乳牙脱落了,虽然没什么大不了的,甚至是微不足道的,但细想起来,牙的更新换代见证着我的成长。每当有一颗牙松动时,我总是喜欢用舌头拗,直至麻痹,突然有种牙掉了的感觉,不由得兴奋起来,嘴一 My milk white, not big teeth off, although no big deal, or even negligible, but in retrospect, the replacement of teeth witnessed my growth. Whenever there is a tooth loose, I always like to bend with the tongue until paralysis, a sudden feeling of teeth fell, could not help but excited, mouth a