1） I have a stomachache 我胃痛 =I have _got__ a stomachache = _there_____ ___is___ someghing wrong with my stomach = My stomach _aches____ =I have (got)a ___pain___ in my stomach .
2)what's the matter 怎么了?= What's the __trouble____ (with you)?=What's your __trouble______ = What's __wrong____ (with you)?= What' the __difficulty____ (with you)?= What has _happened____ to you = ___is____ anything wrong (with you)?= What's __happening____