qì chē jiān nán dì pā shàng gāo pō,sī jī jǐn wò fāng xiàng pán bù gǎn fàng sōng。汽车艰难地爬上高坡,司机紧握方向盘不敢松懈。The car struggled to climb the steep slope, the driver gripping the steering wheel tightly.