1. 正切曲线 tangent curve
  2. 正前方 the due front
  3. 正割 secant
  4. 正割圆 secant circle
  5. 正北 due north
  6. 正午 high noon
  7. 正午时钟打十二下 The clock strikes twelve tim...
  8. 正午线 noon-mark
  9. 正南偏东 south by east
  10. 正厅 main hall stalls
  11. 正反 positive and negative
  12. 正反两方面的看法 the pros and cons
  13. 正反射 normal reflection
  14. 正反配板法 book matching
  15. 正反馈 positive feedback
  16. 正史 history books written in bio...
  17. 正号 positive sign
  18. 正合 exact
  19. 正合吾意 suit me down to the ground
  20. 正合序列 exact sequence
  21. 正合我意 It suits me fine. be equal t...
  22. 正名 rectification of name
  23. 正名责实 call a thing by its right na...
  24. 正向 forward direction
  25. 正向传导 forward conduction
  26. 正告 earnestly admonish
  27. 正味 pure flavours
  28. 正品 certified products
  29. 正商标 original trademark
  30. 正因如此 precisely because of it
  31. 正因这些扣人心弦的篇章才使得他的作品举世闻名 It's just these heart-thrill...
  32. 正在 in process of
  33. 正在举行会议 now in session
  34. 正在修建一条新铁路 A new railway is under const...
  35. 正在修理 be under repair
  36. 正在兴起 on the upsurge
  37. 正在出操 be at drill
  38. 正在呼吁援助在地震中失去家园的人们 An appeal is being made for ...
  39. 正在广播 be on the air
  40. 正在往驳船里卸货 The cargo is being discharge...
  41. 正在战斗的火候上 at the crucial moment of the...
  42. 正在抽穗结棒的玉米 corn in the ear
  43. 正在祈祷 be at one's prayer
  44. 正在进行磋商 Consultations are under way.
  45. 正在长牙齿的婴儿喜欢咬硬物 Babies who are getting new t...
  46. 正多边形 regular polygon
  47. 正大 upright
  48. 正大光明 open and aboveboard
  49. 正好 just in time
  50. 正如 exactly as

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