ing的音标

Play-ing chess is his favourite pastime.下棋是他最喜爱的消遣。The ? ing girdling process weakens the trees, it.这个带状剥树皮的过程伤害了树.Hillsden was complain-ing of cramp in his calf muscles.希尔斯登说他小腿抽筋。People here are reclaim-ing land from t...

-ing（用以构成规则动词的现在分词）...