您要查找的是不是：
- 2-氯-4-硝基苯甲醚2 - chloro - 4 - nitroanisole
- 2-氨基-4-苯基硒唑2-amino4-phenyl-selenazole
- 用4乘以10multiply 10 by 4
- 3-甲基-2-戊烯-4-炔-1-醛3-methyl-2-penten-4-yn-l-hyde
- 2α2α
- 2加2得4。Add 2 and 2 to get 4.
- PCV-2PCV-2
- 乘4two by four 2
- 会-2Hui-2
- 一月差4天a month less 4 days
- 以4乘9。to multiply 9 by 4 .
- 异形4Alien Resurrection
- 正方形可定义为具有4条等边的矩形。A square may be defined as a rectangle with four equal sides.
- 2除8等于4。Eight divided by two is four.
- 4分钟走1英里 。to do a mile in four minutes.
- 早餐要花4英镑。Breakfast cost four pound.
- 是4的两倍。Eight is the double of four. 8
- 连续4天for four consecutive days
- 这两对夫妇4人一行，一起去度假了。The two couples made a foursome and went on holiday together.
- 那样的话，你出差不会超过4天吧?In that case you will not stay longer than four days?
