improving是improve的现在分词
improve
美 [ɪm'pruv]
英 [ɪm'pruːv]
- v.改善；增加；利用；增高(土地等的)价值
- 网络改进；精炼；进步
第三人称单数：improves 现在分词：improving 过去式：improved
v.+n.
improve quality,improve performance,improve efficiency,improve system,improve environment
adv.+v.
greatly improve,significantly improve,dramatically improve,gradually improve,substantially improve