The crash helmet would protect their head.

防可以保护他们的部。

You'd better put on this crash helmet – just in case.

你最好戴防——以防万一。

Jae says, " You'd better put on this crash helmet, just in case."

Jae 说， “你最好戴， 以防万一。

The rider sat looking back at him, crash helmet shining.

骑手坐在那里回看着他，安闪闪发亮。

We'll just have to keep our eyes open and be thankful for these crash helmets!

爱丽丝：我们只需要睁大眼睛，感谢些防！

Sure, said Roy. His ears were getting hot under his crash helmet.

当然，罗伊说。他的防下的耳朵越来越热。

They put on their crash helmets and the tall leggy girl started her bike.

他们戴防，高子长腿女孩发动了她的自行车。

He put on his crash helmet and his gloves. Then he started the bike and waved goodbye.

他戴了防和手套。然后他发动自行车，挥手告别。

You don't need a crash helmet to listen to them, thanks to the wonderful work by Dr. Lucy Tse, our scriptwriter.

多亏了我们的编剧 Lucy Tse 博士的精彩作品，你不需要也能听到他们的声音。

A " crash helmet" is something you wear over your head, like a motorcyclist would wear, to protect your head in case you fall out of the vehicle and hit your head.

” “防” 是戴在的东西， 就像骑摩托车的人戴的那样，以防您从车掉下来到。

A " crash helmet" is something that someone riding a bicycle or a motorcycle might have on their head to protect it in case they fell off of the bicycle or the motorcycle and hit the ground.

“防”是骑自行车或摩托车的人可能戴在的东西，以防他们从自行车或摩托车掉下来到地。