（1）作為青少年，保護(hù)自己是很重要的.But how can we protect ourselves？Here are some suggestions.
    Firstly，（2）we should obey the traffic rules when we go out.Secondly，we should avoid hurting ourselves when doing exercises and never swim in the river without permission.Thirdly，we should be careful to make friends and stay away from those who are dangerous.Moreover，it's important for us to keep food safety in mind and we had better eat three meals at home.Last but not least，we should keep calm when we are in danger，（3）然后我們可以打電話給警察或向老師或家長(zhǎng)尋求幫助。
    （4）In a word，safety comes first. So we need to learn how to protect ourselves and stay away from danger.
（1）

As a teenager，it is important to protect ourselves.

As a teenager，it is important to protect ourselves.

（2）

當(dāng)我們外出時(shí)，我們應(yīng)該遵守交通規(guī)則。

當(dāng)我們外出時(shí)，我們應(yīng)該遵守交通規(guī)則。

（3）

then we can call the police or ask teachers or parents for help.

then we can call the police or ask teachers or parents for help.

（4）

總之，安全第一。

總之，安全第一。