(“双重麻烦”)的专用山地车真是名符其实,是为那些敢于冒险的双双对对一起驶下山坡设计的。即使车架构造是个整体,但仍不适于那些胆小者疾驶下山。较难处理的是谁该坐在后座-那里没有车把。 The special mountain bike (“double trouble”) is truly a name, designed for those who dare to take risks and drive off the slopes together. Even if the frame structure is a whole, it is still not suitable for those who are timid to drive down the mountain. The harder part is who should sit in the back seat - there is no handlebar.