How to correctly reverse a numpy array in 2 dimensions?

Question

I am trying to reverse an array in 2D which sounds easy but when I use np.flip or slicing method, it does not work properly. Perhaps I am doing something wrong?

import numpy as np
t = np.array([[1,2,3,4],[5,6,7,8]])
t
array([[1, 2, 3, 4],
   [5, 6, 7, 8]])

t[:,::-1]
array([[4, 3, 2, 1],
   [8, 7, 6, 5]])

np.flip(t, axis=1)
array([[4, 3, 2, 1],
   [8, 7, 6, 5]])

np.flip(t, axis=0)
array([[5, 6, 7, 8],
   [1, 2, 3, 4]])

What I want is the following:

t
array([[1, 2, 3, 4],
   [8, 7, 6, 5]])

I want to reverse the elements of the 2nd dimension but keep the 1st dimension unchanged.