We are steadily learning to be more diligent with ourpower usage.(Para.9) Little by little we are learning to manage our power usagemore carefully. 我们渐渐学会勤于省电。 > 7 We are steadily learning to be more diligent with our power usage. (Para. 9) Little by little we are learning to manage our power usage more carefully. 我们渐渐学会勤于省电