1.the downward slope of a hill
2.a ski race down a trail
3.sloping down rather steeply
4.toward a lower or inferior state;
your performance has been going downhill for a long time now
5.toward the bottom of a hill;
running downhill, he gained a lot of speed
高山速降車(chē)”,英文叫做DOWNHILL(簡(jiǎn)稱DH)。DH是從山地車(chē)族里分離出來(lái)的車(chē)型,比所謂的山地自行車(chē)要高兩個(gè)檔次,作為一種以刺激、驚險(xiǎn)著稱的終極運(yùn)動(dòng),很早以前在一些歐美國(guó)家就相當(dāng)盛行。這類車(chē)前叉很高,車(chē)體沉重,制動(dòng)性能優(yōu)越,擁有超強(qiáng)的抗震系統(tǒng),對(duì)山路的崎嶇和陡峭有極強(qiáng)的適應(yīng)能力,但比較笨重,對(duì)車(chē)手的體能要求較高。一般先用纜繩把車(chē)?yán)仙剑缓髲纳缴细咚傧蛳买T行,體驗(yàn)極速帶來(lái)的刺激。這種玩法極具挑戰(zhàn)性——駕著速