求翻译：但阅读水平较差的学习者就难做这一点。所以读者的语言知识水平差异性对阅读质量的影响很大。如果读者阅读材料时必须清楚的意识到：只有选择与读者语言知识水平相宜的阅读材料才能保证阅读效果。是什么意思？

Reading level is poor learners difficult to do this. The reader's knowledge of the language differences in the quality of reading. If you read the material must be clearly aware of: only choose reading materials appropriate to the level of language knowledge with our readers in order to ensure the r

But reading levels are relatively poor learners would be difficult to do this. That is why readers' knowledge of the language level in reading quality differences have a significant impact. If readers reading material, it must be made clear: only the conscious choice and readers' knowledge of langua

But the reading level bad learner on difficult to make this point.Therefore reader's language state-of-art difference to reads the quality the influence to be very big.If the reader reads time the material must clear consciousness: Only then the choice and the reader language state-of-art suitable r

But poorer reading levels is hard to learn to do this. So readers of the language knowledge level difference on the quality of reading can have a big impact. When reading material if you must clearly realize that only select appropriate reading materials in order to ensure the level of language know