“平白”的拼音？

“平白”的英语可以翻译为：for no reason，gratuitously ...

蛋糕制造者平白地用抖动的耙子摇一条赤裸的蛇.The cake maker shakes a naked snake with the quaking without sake.平白的脸们平白地发出声音来, 吓人忽跳.Plain looking faces utter voices a plain way , freaking people a sudden....