理工类教程汇总和更新

1. come to the point 说到要点，扼要地说2. come/go into operation 使投入生产，使运转3. catch fire 着火4. come/go into... [查看全文]

26. be confronted with (=be brought face to face with) 面对，面临27. be conscious of (=be aware of ) 觉察，知道2... [查看全文]

1. be friends with对…...友好，与…...交上朋友2. be absent from... 缺席，不在3. by oneself 依靠自己4. be accustomed t... [查看全文]

26. attend to (=give one’s attention，care and thought) 注意，照顾，attend on (upon) (=wait upon，serve，look a... [查看全文]

1. abide by (=be faithful to，obey) 忠于，遵守2. absence or mind (=being absent-minded) 心不在焉3. account for (=gi... [查看全文]

Spacing in AnimalsFlight DistanceAny observant person has noticed that a wild animal will allow a man or other p... [查看全文]

Some things we know about languageMany things about language are a mystery, and many will always remain so.But s... [查看全文]

Washoe Learned American Sign LanguageAn animal that influenced scientific thought has died. A chimpanzee named Wash... [查看全文]

Transport and TradeTransport is one of the aids to trade. By moving goods from places where they are plentiful ... [查看全文]

What Is a Dream?For centuries，people have wondered about the strange things that they dream about. Some psycholog... [查看全文]