The truck quietly rolled forward and demolished all the old wooden fencing.
卡车静静地缓慢前行，毁了所有旧木栅栏。
The aeroplane rolled forward and flew.
飞机向前滚动并且飞。
He then put the big melon on the ground and rolled it forward quickly.
咕噜噜，咕噜噜地向前滚，一直把西瓜滚到家里。
He then put the big melon on the ground and rolled it forward quickly.
咕噜噜，咕噜噜地向前滚，一直把西瓜滚到家里。
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