$tree=$a与$tree[]=$a 有啥区别$tree=$a与$tree[]=$a 有啥区别

$tree=$a与$tree[]=$a 有啥区别$tree=$a与$tree[]=$a 有啥区别 There is a tree which is 1500 years old.= There is a ________ tree. In a tree on a tree区别 a christmas tree是什么意思 a tree cutter是什么意思? in a tree This is a green tree (a green tree)怎么提问 plant a tree意思是什么? draw a tree怎么读 ( )in the tree?( ) ( )a dog. _______under the tree?A sheep. I________（climb) a tree yesterday （ ）a beautiful tree is! A breeze hits the tree. tree 是a apple tree还啊an apple tree? 是a apple tree还是an apple tree? in the tree和in a tree 有区别吗