1. 三倍：three-valued 三价的 | threefold 三倍 | threeman 三人管理
2. 三倍的：threefold symmetry三次对称 | threefold三倍的 | tidal creek潮溪
3. 三倍 三重：three leafed rose 三瓣玫瑰线 | threefold 三倍,三重 | tiling 镶嵌,铺砌
4. 三倍的(凡数字加上fold即有表示倍数的意思)：182. three 三 | threefold 三倍的(凡数字加上fold即有表示倍数的意思) | 183. tired 累的;疲倦的
1. City travelers to Tibet may jump threefold this winter, according to the Shanghai Tibet Tourism Bureau.
2. Since its listing in Hong Kong in 2004 the company has recorded a threefold growth in sales and profit over the past four years.
3. Two Sunni Arab alliances won 55 seats in December, a threefold increase over the outgoing parliament.
4. The reasons more and more opinion pieces are appearing in newspapers are threefold.