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- This is not totally wrong except that the students get tired of practice very soon. When this happens,the students think that Chinese is a dull subject and lose interest. What is worse is that they think Chinese language teachers are out-dated. 这原则上没有不对，只是单调的重复练习太多了，学生感到厌倦，不但觉得华文课没趣味，更糟的是认为老师落伍，提不起学习的兴趣。
- This is not totally wrong except that the students get tired of practice very soon. When this happens, the students think that Chinese is a dull subject and lose interest. What is worse is that they think Chinese language teachers are out-dated. 这原则上没有不对，只是单调的重复练习太多了，学生感到厌倦，不但觉得华文课没趣味，更糟的是认为老师落伍，提不起学习的兴趣。
- Few teachers are able to interest their students in dull subjects that mean a lot of hard work. 很少有老师能使学生对那些需要刻苦努力才能学好的枯燥学科感兴趣。
- The dull play seemed to last an eternity. 这场乏味的剧似乎演个没完没了。
- Market dull and slacken no business report. 市场萧条胩衰退，没有有关交易的报道。
- The absence of color in that drawing make it dull. 那幅画因没有着色而显得晦暗。
- The dying fire was throwing out a dull red light. 将要熄灭的火发出暗红色的光。
- The bandits subject us to all sort of indignity. 强盗们对我们加以各种侮辱。
- The old man's life became dull and colorless. 老人的生活变得呆板无趣。
- He was droning out dull papers on dull subjects 他在喃喃地读着那些就一些意思不大的问题所撰写的单调乏味的论文。
- I feel a dull pain in the stomach. 我觉得胃部隐隐作痛。
- He posed as an authority on that subject. 他以那个问题的权威自居。
- A person regarded as ungainly or dull witted. 愚笨的人被认为是笨拙的或弱智的人
- I have no pretence to be an expert on the subject. 我并不自命是这方面的专家。
- He couldn't teach such dull children. 他教不好这样呆笨的孩子。
- He's mute on the subject of social system. 他对社会制度的问题保持沉默。
- He felt a dull ache in his shoulder. 他感到肩膀隐隐作痛。
- This is one of the standard books on the subject. 这是有关这个问题的权威著作之一。
- He is rather dull in comparison with others. 和别人比较起来，他相当迟钝。
- He do not throw much fresh light on the subject. 关于这个问题他没有提供很多新的见解。
