1.
the second, third, fourth, etc power of x x
的二次、 三次、 四次等幂
2.
Of or relating to the fourth degree.
四次的四次的或有关第四等级的
3.
fourteen years for having attempted to escape on four occasions.
四次企图越狱，十四年。
4.
the fourth power of x x
的四次幂(X+[4])
5.
a biquadratic equation [ root ]
四次方程式[乘根]
6.
the second,third,fourth,etc power of x(x2,x3,x4,etc)
x的二次、三次、四次等幂（x2,x3,x4等）
7.
Four, five, six -- seven times they met during the month of June.
六月里，他们幽会了四次，五次，六次——七次哩。
8.
The criminal had had four previous convictions.
这名罪犯有四次前科.
9.
the Fourth Session of the Ninth National People's Congress
九届全国人大四次会议
10.
three winter ewe
第四次剪毛以后母羊
11.
binodal cyclide
双结点四次圆纹曲面
12.
Extension of quartic Said-Ball curve
四次Said-Ball曲线的扩展
13.
Extension of Quartic Wang-Ball Curve
四次Wang-Ball曲线的扩展
14.
Yes, drink this mixture four times a day, one measure each time.
是的，一天饮四次，一次一格。
15.
Drink this mixture four times a day, one measure each time .
这合剂每天服四次，每次一格。
16.
Rotate the pinion yoke three or four times.
旋转小齿轮轴轭三次或四次。
17.
This is for internal use. Two tablets, four times a day.
这是内服药。一天四次，每次两片。
18.
But the third, fourth and fifth time, I don't think that's about luck.
第三次、第四次，第五次呢，我看就不是靠运气了吧。