The confrontation has been bubbling under for nearly a year.对抗暗中持续了近一年。

The Juninho deal is still bubbling under.儒尼尼奥的转会协议仍在暗中商洽。

Having bubbled under for years, jungle music is about to go mainstream.在沉寂了几年之后, 丛林音乐开始转向主流派风格。