很多国家连一个赛车场都没有，更不要说先进的风洞了。

Most nations lack a single velodrome, let alone access to state-of-the-art wind tunnels.

广东国际赛车场是广东国际汽车博览园的首个引擎项目。

Guangdong International Circuit is the first project of Guangdong International Automobile Park.

赛赛曼先生喊道：“旅途愉快！”

Mr. Sesemann called out, "Happy journey!"

感谢你的好意，赛赛曼先生。

I thank you for your kind offer, Mr. Sesemann.

尼克：项目是不少，不过大体分为四类：摩托车场地赛，摩托车公路赛，摩托车旅行赛，摩托车越野赛和多日赛。

Nick: there are many events. However, there are generally four types: track race, road race, travel race, cross-country race and multi-day race.