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- It is vain to attempt to root out heresy by force. 试图用暴力消除异端邪说是徒劳的。
- The epicotyl was difficult to root, the root rate was 5% and only one adventive root could be induced, but it could induce branch roots. 其中，上胚轴生根困难，生根率5 %25，只诱导出1条不定根，但经继代后能产生数条侧根。
- It must be difficult to play various personae in the same movie. 在同一个电影中扮演不同的角色肯定不容易。
- It was difficult to tell his exact age. 很难判断他到底多大岁数。
- I managed to root out a copy of the document. 我好不容易才找到了文件的副本。
- It is difficult to express it in terms of science. 要用科学的字眼来表达它是很困难的。
- Do you think it is possible to root out crime? 你认为可以根除犯罪吗?
- It was difficult to gauge how people would respond. 大家的反应如何难以估计。
- He find it difficult to give shape to his idea. 他觉得很难把他的想法，明确表达出来。
- It is difficult to decide between the two opinions. 在这两种意见之间抉择是困难的。
- It is difficult to keep on terms with such a man. 很难和这样的人保持友好关系。
- It is difficult to stamp out all the crimes. 很难把所有的犯罪都消除掉。
- The stain on his shirt is difficult to clean off. 他衬衣上的污点很难去除掉。
- It is necessary to root out corruption in government. 铲除政府内部地腐败现象很有必要。
- It was difficult to clamber the mountain. 爬上那座大山是困难的。
- Eels are long and difficult to catch. 鳝鱼很长而且很难抓住。
- The problem is considerably difficult to us. 对我们来说这个问题相当难。
- It is difficult to be natural when one is tense. 人在紧张的时候很难泰然自若。
- It's difficult to recruit teachers of quality. 要聘请到素质好的老师是很困难的。
- He's trying to root up the truth out of the child. 他千方百计从这个小孩口中探得真相。
