mountain riverˈmauntin ˈrivə短语¹⁸⁰⁰⁹⁸⁺¹ 基本例句 山溪 At a mammoth2.5 miles long,330ft wide and almost 800ft high, Hang Son Doong also known as Mountain River Cave, is as high as25 double decker buses. 这个庞大的洞穴有2.5英里长，330英尺宽，800英尺高相当于25辆双层巴士的高度。他也被称作山河洞。 kle100