Why is the accuracy rate so low?

[sunhufei]

Train 26, loss: 3.676545, train acc: 0.075407, train avg acc: 0.030953
Test 26, loss: 3.640235, test acc: 0.042139, test avg acc: 0.026000
Train 27, loss: 3.671733, train acc: 0.072358, train avg acc: 0.030758
Test 27, loss: 3.637559, test acc: 0.044976, test avg acc: 0.027750
Train 28, loss: 3.675745, train acc: 0.073272, train avg acc: 0.031713
Test 28, loss: 3.636188, test acc: 0.068071, test avg acc: 0.042000
Train 29, loss: 3.691305, train acc: 0.071545, train avg acc: 0.030454

[sunhufei]

Why