柯林斯英英词典

back [bæk]

1. 1. n the posterior part of the human body, extending from the neck to the pelvis

2. 2. n the corresponding or upper part of an animal

3. 3. n the spinal column

4. 4. n the part or side of an object opposite the front

5. 5. n the part or side of anything less often seen or used

   the back of a carpet

   the back of a knife

6. 6. n the part or side of anything that is furthest from the front or from a spectator

   the back of the stage

7. 7. n the convex part of something

   the back of a hill

   the back of a ship

8. 8. n something that supports, covers, or strengthens the rear of an object

9. 9. n [ball games] a mainly defensive player behind a forward

10. 10. n the position of such a player

11. 11. n the part of a book to which the pages are glued or that joins the covers

12. 12. n [采矿] the side of a passage or layer nearest the surface

13. 13. n the earth between that level and the next

14. 14. n the upper surface of a joist, rafter, slate, tile, etc, when in position - Compare bed

15. 15. vb [mainly tr] [also intr] to move or cause to move backwards

16. 16. vb to provide support, money, or encouragement for (a person, enterprise, etc)

17. 17. vb to bet on the success of

    to back a horse

18. 18. vb to provide with a back, backing, or lining

19. 19. vb to provide with a music accompaniment

    a soloist backed by an orchestra

20. 20. vb to provide a background for; be at the back of

    mountains back the town

21. 21. vb to countersign or endorse

22. 22. vb [古词] to mount the back of

23. 23. vi. [intr; foll by on or onto] to have the back facing (towards)

    the house backs onto a river

24. 24. vi. [intr] (of the wind) to change direction in an anticlockwise direction in the northern hemisphere and a clockwise direction in the southern - Compare veer

25. 25. vi. [nautical] to position (a sail) so that the wind presses on its opposite side

26. 26. adj [prenominal] situated behind

    a back lane

27. 27. adj of the past

    back issues of a magazine

28. 28. adj owing from an earlier date

    back rent

29. 29. adj [chiefly US, Austral, and NZ] remote

    back country

30. 30. adj (of a road) not direct

31. 31. adj moving in a backward direction

    back current

32. 32. adj [phonetics] of, relating to, or denoting a vowel articulated with the tongue retracted towards the soft palate, as for the vowels in English hard, fall, hot, full, fool

33. 33. adv at, to, or towards the rear; away from something considered to be the front; backwards; behind

34. 34. adv in, to, or towards the original starting point, place, or condition

    to go back home

    put the book back

    my headache has come back

35. 35. adv in or into the past

    to look back on one's childhood

36. 36. adv in reply, repayment, or retaliation

    to hit someone back

    pay back a debt

    to answer back

37. 37. adv in check

    the dam holds back the water

38. 38. adv in concealment; in reserve

    to keep something back

    to hold back information

39. 39. adv See also back down back off back out back up

40. 40. adv [Etymology] Old English bæc; related to Old Norse bak, Old Frisian bek, Old High German bah

back [bæk]

1. 1. n a large tub or vat, esp one used by brewers

2. 2. n [Etymology] C17: from Dutch bak tub, cistern, from Old French bac, from Vulgar Latin bacca (unattested) vessel for liquids