例：I like pears.→ I don't like pears.
在新集体里，我们会有许多不认识的新同学，面对新面孔，我应该（ ）
Look at the tree. It is big and strong. It has a trunk. The trunk is big and brown. It has branches. They are brown too. Its leaves are green and beautiful. We can see some little flowers on the tree. But we can’t see the roots. They are under the ground.
