用英文怎么说?a的3次方,4次方,5次方,一直到11次方,

Trust me.I am correct.
a to the power of 2 - a-square
a to the power of 3 - a-cube
a to the power of 4
a to the power of 5
a to the power of 6
a to the power of 7
a to the power of 8
a to the power of 9
a to the power of 10
a to the power of 11
a to the power of 12
a to the power of 13
a to the power of 14
a to the power of 15
a to the power of 16
a to the power of 17
a to the power of 18
a to the power of 19
a to the power of 20
Also you can have "a to the power of 0.000001","a to the power of minus one","a to the power of b","x to the power of 1 over y","a raised to its n-th power","a raised to the order of X",blah,blah,blah.
Note:when you say "raise to * power",it should be "raise to its n-th power",not "the n-th power".

正确的应该说
a to the third power
a to the fourth power
a to the fifth power
a to the sixth power
a to the seventh power
a to the eighth power
a to the ninth power
a to the t...

a's third power
a's fourth power,
a's fifth power
a's sixth power,
a's seventh power,
a's eighth power,
a's ninth power
a's tenth power
a's eleventh power
and so on

a of 3 power,
a of 4 power,
a of 5 power,
a of 6 power
a of 7 power
a of 8 power
a of 9 power
a of 10 power
a of 11 power