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1·According to the new traffic rules, people must wear a helmet when riding an e-bike.

根据新的交通规则，人们骑电动车时必须戴头盔。

2·People hate to wear a helmet because it's thick and heavy.

人们不喜欢戴头盔，因为它又厚又重。

3·On a bike you must wear a helmet.

在骑自行车的时候，请你戴上头盔。

4·You have to wear a helmet .

你不得不戴上头盔。

5·You have to wear a helmet.

你不得不戴上头盔。

6·Now do you know you wear a helmet?

现在你知道为什么你每次都该戴安全帽了吧？

7·Entering the site must wear a helmet.

进入工地现场，必须佩带安全帽。

8·May I wear a helmet?

我可以戴头盔吗？

9·Always wear a helmet that fits properly.

尽量配戴合适的头盔。

10·Now, let me ask you! Do you wear a helmet?

那么现在我问你，你戴头盔吗？