widenvt.加宽;使变宽;扩大vi.变宽
widening investment扩大投资范围
widening of the ring环扩大
widening engineering扩建工程
Widen forbidden band禁带宽度
widening of subgrade路基加宽
Widening improvement拓宽改造
widen the difference拉开档次
widening differences分歧扩大; 分歧越来越大
widening of the band扩大变动幅度
widen one's knowledge扩充知识