pairing

• Spermathecae and their pores are not always paired .
  受精囊与孔常不成对。
• You have behaved very badly , the pair of you !
  你们表现得糟极了，你们俩！
• Both of these particles can produce ion pairs .
  这两种粒子都能产生离子对。
• She watched the pair and kept her own counsel .
  她盯着这对青年，不动声色。
• Next a pair of feet was seen in the distance .
  接着，他们看见远处有一双脚。
• We start with one pair of newly born rabbits .
  我们从有一对初生的小兔开始。
• He paired off with miss sedley .
  他和赛特笠小姐结成了一对儿。
• Is it necessary for me to buy a pair of water-skis ?
  我有必要买双滑水屐吗？
• I wore out two pairs of boots on the walking tour .
  我徒步旅行穿坏了两双靴子。
• Well, you are a pair of pickles .
  嘿，你们真是一对捣蛋鬼。