teeth和tooth怎么用1、It is important and good for us to keep our teeth clean and healthy.2、His tooth gave another red-hot jounce.teeth 和tooth 在运用的时候单复数怎么选择?

teeth和tooth怎么用1、It is important and good for us to keep our teeth clean and healthy.2、His tooth gave another red-hot jounce.teeth 和tooth 在运用的时候单复数怎么选择? i brush my teeth twice a day 为什么要用teeth而不是tooth teeth和tooth使用的区别是什么? It hurts so much when a baby gets his first teeth这里为什么不用tooth而用teeth?这是走遍美国里的一句台词.. teeth和tooth到底哪个是复数?怎样区分好? 翻译 他没有牙齿 是用tooth还是teeth teeth tooth的正确用法5只牙是five teeth or five tooth or five teeths or five tooths什么时候用tooth,一颗牙怎么说？ tooth和teeth哪个是复数?这两个单词是牙齿的意思. The baby has no teeth,so he can't eat hard food.为什么用teeth而不用tooth no 后面加tooth还是teeth I had a doughnut this morning before coming here.I brushed my teeth.There is no sweet tooth是神马 请帮忙完成下面的几个小题1.We eat something _____our _____2.It is cheap _____only 60 yuan3.I think my arm hurtA Oh,dear B Why?C Thank you D I am sorry to hear that.是tooth,teeth. 为什么一定是tooth brush?而不是teeth brush?遇到（）+（）的情况,哪些情况下,前变后也变,哪些情况下,前不变后边?最好可以给个例子.1楼给我那么多有什么用。特别是一些特例。 为什么刷牙是brush my teeth牙齿是tooth? That girl looked funny with a pair of_____.A false teeth B false tooth C wrong teeth D wrong tooth I’m brushing my teeth inthe kitchen.用Alice改写句子怎么做 tooth怎么读 we should clean( )twice day A our tooth B our tooths C teeth D our teeth