用英語翻譯句子：1.政府嚴禁商販買香煙給兒童（forbid sb. from doing sth.）

1 The government forbids merchants from selling cigarette to children.

2 With the guidence of the boy, we found that place quickly.

3 It has spent less than before on overseas travel. This means that more and more people will travel abroad.

4 I had them laugh after they listened my joke.

5 There is a big difference between knowing something true and proving it true.