unit18inventions(nx)内容摘要：
wellknown that said that reported that It seems that It happened that ... Paragraph 3 “Old kinds of paper” were still difficult to read and were very heavy to carry. Paragraph 4 At the same time other kinds of paper were developed. Check points: 1. be difficult for her to plete the work in time. easy hard simple interesting 2. The box is too heavy for a girl to carry. *** ( I am too glad to see you. ) 3. less hard, expensive, beautiful, much more expensive, much harder, much less, develop v. development。阅读剩余 0%
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