
adj.旋轉(zhuǎn)的;搖晃的;波動(dòng)的
n.旋轉(zhuǎn);滾動(dòng)
動(dòng)詞roll的現(xiàn)在分詞形式.
A line generated by a point on a circle rolling along a straight line. 一個(gè)圓上的某個(gè)點(diǎn)在該圓順著一條直線旋轉(zhuǎn)時(shí)形成的線。
He saw the white clouds rolling above Wall Street. 他看見了在華爾街上空滾動(dòng)著的白云。
He was seriously wounded by a rolling stone. 滾動(dòng)的石頭使他受了重傷。
n.登記(入會(huì);卷)