unround
vt. 不以嘴唇呈圆形而发音
第三人称单数 unrounds
现在分词 unrounding
过去式 unrounded
过去分词 unrounded
例句
An "unround" (out of round) or eccentric wheel is alleged to have led to wheel tyre failure of a German ICE at Eschede in 1998, causing a high-speed crash with heavy loss of life.
据称，1998年在德国Eschede发生的ICE列车高速碰撞，就是因为车轮不圆或缺陷造成车轮轮箍故障引起的，事故造重大伤亡。
