it\s trouble doing sth 与it?
it\'s trouble doing sth 与it\'s trouble to do sth区别
前者没有这样的用法的,应该是have trouble doing sth 后者是it's troublesome to do sth
这个是解析,http://wenku.baidu.com/link?url=s879s6dECvpSnEVla4PvzknIxTLml7KUKMl53UNRtgXSiRbPLT51e2aulryB0W2z8Wc_73XmEfJb5BjdXb0owZQ_a40FqwlbA_hDCra6Kg3
答:have problem doing sth详情>>