We show that the Raman transition probability can be manipulated by the relative time delay, the intensity ratio and the carrier-envelope phase between two time-delayed dual-color laser pulses. Our results indicate that when the second laser pulse is applied at half of the molecular rotational period, the contributions of the odd and the even rotational states are different. However, the two contributions are the same when the relative time delay is a full molecular rotational period. Time-dependent molecular orientation signals and their corresponding Fourier transforms validate the results.