The regimen PLD plus cyclophosphamide 4 cycles followed by paclitaxel or docetaxel 4 cycles(noted in phase II CAPRICE)will be used as experimental group. The regimen will be compared to the standard treatment of doxorubicin plus cyclophosphamide (AC)4 cycles followed by paclitaxel or docetaxel 4 cycles(noted in NCCN guideline).