a tall tree~~this tree is tall and green 一颗大树~~这棵树又高又绿
a river~~this river is long 一条河~~这条河很长
a pond~~fish and frogs live in this pond 一个池塘~~鱼和青蛙生活在这个池塘里
an ocean~~we can't drink ocean water 一个海洋~~我们不能喝海水
（oceans are very large of water海洋是一个很大的水域）
a mountain~~some mountains are very high 一座山~~有些山很高
a forest~~a forest has many trees 一片森林~~森林里有许多树
a little dog~~this little dog is walking 一只小狗~~这只小狗正在散步
a sleeping cat~~this cat is sleeping 睡觉的猫~~这只猫在睡觉
two birds in a tree~~these two birds are in a tree. 两只鸟在树上~~两只鸟在树上。
a frog~~this frog lives in a pond 一只青蛙~~这只青蛙住在池塘里
a family of ducks~~this is a family of ducks 鸭子一家~~这是鸭子一家
a little dog~~this little dog is walking 一只小狗~~这只小狗正在散步
a black and white cat~~this cat is sleeping 一只黑白相间的猫~~这只猫在睡觉
a bird~~birds can fly 一只小鸟~~鸟会飞
a frog~~this frog lives in a pond 一只青蛙~~这只青蛙住在池塘里
ducks~~this is a family of ducks 鸭子~~这是鸭子一家
学习记录：
20190201
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