Changing people's behaviors remains another road block, the researchers claim.
研究者称，改变人们的行为是另一大困难。
Troops established a road block on the frontier.
士兵在边界上设了路障。
This paper showed the Integrated design and calculating methods of the road block removal truck.
阐明了道路清障车的总体设计和计算方法。
Frenchman who raced through a motorway road block, triggering a high-speed police car chase that ended in a minor crash, has blamed aliens from Mars for his reckless driving.
一名法国男子驾车飞速闯过高速公路上的路障，引起警车的高速追逐，最后造成了一次轻微的撞车事故。他把自己的鲁莽驾驶归咎于来自火星的外星人。
Frenchman who raced through a motorway road block, triggering a high-speed police car chase that ended in a minor crash, has blamed aliens from Mars for his reckless driving.
一名法国男子驾车飞速闯过高速公路上的路障，引起警车的高速追逐，最后造成了一次轻微的撞车事故。他把自己的鲁莽驾驶归咎于来自火星的外星人。
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