经典句子：

There is a sign. 那有个提示牌。

What does it say? 它写什么？

Keep off the grass. 不要踩踏草坪。

Perhaps the grass will cry. 可能小草会哭吧。

I snapped a twig. 我折了一根小树枝。

The tree is hurt. 小树受伤了。

Do you wanna use the exercise machine?玩运动器材吗？

No, I prefer to take a walk. 不，我更喜欢散散步。

I like the cool breeze by the lake. 我喜欢在湖边吹凉风。

Can I throw a stone into the lake? 可以朝湖里扔石子吗？

Small ones, please. But not any trash. 小石头可以，但不要扔垃圾。

Of course I know trash should be in the trash can. 当然我知道垃圾应该扔到垃圾桶啊。

I found a pebble. 发现了一个卵石。

Stay close to me. 跟紧点。

Don’t talk to strangers.不要和陌生人说话。