I (we) we(只有宾格) him( they) this (these) her(they) watch ( watches )
child(children) photo ( photos ) diary (diaries ) day(days ) foot( feet )
book( books ) dress(dresses) tooth( teeth ) sheep (sheeps) box( boxes )
strawberry (strawberries ) thief ( thieves ) yo-yo ( yo-yos ) peach( peaches)
sandwich ( sandwiches) man( men) woman( women ) paper( paper ) juice(juice )
water( water) milk( milk ) rice( rice ) tea( tea)