adv.广泛地，普遍地，到处，大量地
Mr Dobson promised to widen the organisation's scope of activity.
多布森先生许诺拓宽该组织的活动范围。
He had an operation last year to widen a heart artery.
去年他接受了一个扩张心脏动脉的手术。
Widen one's field of vision.
开眼界,拓宽视野.
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