问朋友借了个单头的的 medela swing 来用，一到奶阵来的时候 朋友的机器总自动关机，不然就是老也不能turn on ,motor always fail to run,I have to try press on many times to turn on it, now midnight due to this , it cost me half an hour to squeeze milk plus trying to turn on machine sad. I want to run out to buy new medela immediately.
