Michael dell returned as ceo in 2007 , vowing to revive the company .

迈克尔•戴尔2007年重返公司担任首席执行官，誓言重振公司。

They are vowing to challenge them with more events .

他们发誓要发起更多的活动来向当局发出挑战。

Only last month his young supporters were vowing to keep him as their leader whatever the anc decided .

直到上个月，他的年青支持者们还发誓无论国大党如何处置他，他们都将继续拥护他为自己的领袖。

President obama began his presidency vowing to negotiate an israeli-palestinian peace .

总统奥巴马誓言在他的任期内要达成以巴和平。

Australia 's main opposition group is vowing to re-engage key asian trade partners , especially china , if it wins saturday 's national election .

澳大利亚的主要反对党联盟承诺，如果赢得周六的全国大选，它将重新加强与亚洲重要贸易伙伴之间的关系，特别是中国。