使位置正to straighten

• 正一正帽子

  straighten one's hat

使端正to put right

纠正to correct

不歪斜straight

• 正南方

  due south

• 正前方

  straight ahead

• 帽子戴得正

  wear one's hat straight

• 画挂得不正。

  The picture was not hung straight.

位置在中间main

• 正院儿

  central courtyard

与反面相对的right

• 这张纸的正反两面都很光洁。

  Both sides of this paper are shiny and smooth.

• 正反两方面的历史经验

  positive and negative historical experiences

参见：正直[zhèngzhí]

参见：正当[zhèngdàng]

纯正pure

• 正白

  pure white

• 正红

  pure red

• 正黑

  jet black

• 味儿不正

  not the right flavour

• 颜色不正

  not the right shade

合乎法度;图形的各边和各角相等的【数】regular

• 正六边形

  regular hexagon

基本的，主要的principal

• 正角儿

  leading role

• 正副会长

  chairman and deputy chairman

• 这里他是正的，我是他的副手。

  He's in charge here; I'm his assistant.

大于零的【数;电】positive

• 负乘负得正。

  A negative number times a negative number gives a positive number.

• 正电流

  positive current

正在某个时间sharp

• 十点正

  10 o'clock sharp

参见：正好

• 正中目标

  right on target

• 正因为如此

  just because of this

• 时钟正打了十二点。

  The clock has just struck 12.

参见：正在[zhèngzài]

• 我正想走，他来了。

  Just as I was thinking of leaving, he got here.