【英語】牛2-10 Up and Down ●escalator 扶梯 handrail 把手 what can an escalator do? you can stand on it, and you don't need to walk, just put your hand on the handrail and just stand, it will take you up. ...
【Raz-D1-10】少于。???? 31 Less Than 數(shù)學(xué)-比較多少。數(shù)魚。 Who has fewer fish? Count the fish to find the numbers. Compare the numbers to find which is less. Sam/Sara/She/He has 3/2/4/1/5/no yellow/red/blue fish. 2/1/Zero is less than 3/4/5. Who has fewer...