A：Look out! A small boy is rushing out blindly.注意!一个小孩乱跑出来了。
B：Gee, how dangerous! I've almost knocked him down.哎呀，好险啊!我差一点撞倒他。
A：You stopped just in time. Good for you!你停得及时。太好了。
B：I braked as hard as I could.我拼命地刹车