1、unicycle——/ˈjuːnɪsʌɪk(ə)l /独轮脚踏车
例句:It's an electric vehicle that looks like a cross between a motorcycle and a unicycle.这是一种电动交通工具,看起来像是摩托车和独轮车的结合品。
2、underground——/ˌʌndəˈɡraʊnd/地铁
例句:He'd caught her dodging fares on the underground.他曾抓到她在地铁上逃票。
underground,地铁。