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"We chose a bicycle helmet because they're the most ergonomic ones," Rojas said. “我們選擇自行車頭盔，因爲它們有最好的人類工程學設計，”羅哈斯說。
Here in Canada it is mandatory to wear a bicycle helmet. (only when riding a bike of course). 在加拿大戴頭盔是必須的（儅然衹是在騎車的時候）。
For the team testing the better bicycle helmet, just getting the microcontroller device to stick to the helmet during tests drops became a challenge. 儅他們要測試出更好的自行車頭盔時，在整個下墜過程中保持微控制器設備黏在頭盔上是個不小的挑戰。
權威例句
The shock absorbance numbers are impressive, says Randy Swart, director of the Bicycle Helmet Safety Institute in Arlington, Va. FORBES: Meet The Girls Who Want To Sell You An Invisible Helmet
Randy Swart, director of the Bicycle Helmet Safety Institute in Arlington, Va. FORBES: The $500 Air Bag For Your Head
We realised that our industrial design master thesis was the perfect place to find out whether the traditional bicycle helmet could be improved on. FORBES: An Airbag For Your Head - The Invisible Bike Helmet