Animals do not make any real improvement in their ways of doing things. 10. by instinct She knew by instinct that he wouldn't be back. Birds build their nests by instinct. 11. speak of Professor Blackwell always speaks highly of his assistant...
9. make a difference 区别对待,有影响,起(重要)作用 Unit 1 1. a great deal 大量 2. on the other hand (可是)另一方面 3. appeal to (对某人)有吸引力;(使某人)感兴趣 Unit 2 1. take it easy 轻松;不紧张;从容 2. run out of 用完 ...
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