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 emergency.

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

W: The social security is not bad now.

M: You must do it in case.