越说越地道英语下226-227

226. Seeing is believing

W: Everybody says that HuaShan Mountain has only one road since ancient times.

M: Finally, we come to see it ourselves.

W: Seeing is believing.

M: Everybody says that the views of GuiLin are the best in the world.

W: It really is a nice place.

M: Seeing is believing.

227. You must do it in case

W: Everyone should remember their safety education.

M: It's not necessary.

W: You must do it in case of emergency¹.

M: The children should be home early in the evening.

W: The social security² is not bad now.

M: You must do it in case

1 emergency   

n.紧急情况，突然事件，非常时刻

参考例句：

• You had to be ready for any emergency.你得随时预防不测。
• She has the ability to keep calm in an emergency.她有处变不惊的本事。

2 security   

n.安全，安全感；防护措施；保证(金)，抵押(品)；债券，证券

参考例句：

• A security guard brought him down with a flying tackle.一名保安人员飞身把他抱倒。
• There was tight security at the airport when the President's plane landed.总统的专机降落时，机场的保安措施很严密。