有没有be difficult doing?请翻译、举例

有没有be difficult doing?请翻译、举例 be difficult 请问有be difficult to do sth 这个词组吗?be difficult XXXXX 还有什么词组? prove difficult 和 prove to be difficult 有什么区别?The operation proved to be difficult.Rescue operations are proving difficult. make life difficult 和 make life be difficult 有什么区别?是否正确和区别 The search proved difficult和The search proved to be difficult有什么区别? difficult有没有名词形式?有怎么写 be difficult doing英语翻译 it would not be difficult.和 it is not difficult有什么区别么it would not be difficult.和it will not be difficult有什么区别呢 before you hurt yourself,I think that you'll be doin just it's difficult to/for有什么区别?it's difficult to和it's difficult for有什么区别?没有上下文喔句型、翻译等方面说吧 listen to sb. doing sth看到一句 She liked listenin' 2 her father readin' stories at bedtime有listen sb. doin' sth.这种用法吗?有什么其他类似的比如watch sb. doin' sth.find sb. doin' sth? 是be difficult to sb 还是be difficult for sb? be difficult to do是什么意思 That will be difficult是什么意思 prove to be difficult是什么意思? I find it difficult to be a good teacher.和I find it is difficult to be a good teacher.有什么区别?第一句的句子成分是什么？ It is not difficult to get to school 为什么既有be动词又It is not difficult to get to school 为什么既有be动词又有动词?