講解：

Today’s key word is Bicycle.

Bicycle 自行車

A bicycle is a vehicle with two wheels which you ride by sitting on it and pushing two pedals（踏板） with your feet.
We can also call this vehicle — Bike.

A bicycle rider is called a cyclist, or bicyclist.
說到自行車，江湖上是無人不知，無人不曉。 它上可以參加國際大賽，下可騎去市場買菜。 那這個人類最偉大的發明之一，到底是由哪位天才哥哥發明的捏？

Long long time ago, a German guy called Baron(男爵) Karl von Drais invented the first human means of transport to use only two wheels(輪子). People call it dandy horse or running machine. 但這是，this dandy horse is made of wood.
此后幾十年中，來自英國，法國等地的各路好漢（發明家）們，各展神通，漸漸的攢出了我們今天使用的bicycle自行車。在這個漫長的過程中，各種形狀的bicycle 紛紛登場。前輪大，后輪小的。車座高入天際的。車座緊貼大地的。
You name it.

自行車的演變史，充分證明了 Human beings are very creative, However, the super bicycle we are talking about today is not just a bicycle anymore.
它是一個手電筒，也是一個充電器，它可以是一部手機，也可以是一個導航儀。
It includes an array of (一大批)convenient smart functions（功能） such as a music player, an emergency call capability, as well as a navigation system and social networking. It can also act as a super health tool allowing the cyclist to monitor different health indicators（健康指標）.
The bike is designed to look like a bird in flight, boasting（標榜） a high level of fashion as well as functionality（功能性）.

總之一句話，帶你裝X帶你飛！！！