复数： undercurrents

That war , its prologue and aftermath , supplied the dark undercurrent of classic film noir .

战争的序曲与余殃给那些经典的“黑色电影”暗流提供了源泉。

However , on reflection , I am also starting to see a potentially darker undercurrent to these boarding announcements .

然而，经过一番思考后，我却也开始看到了这些登机通告背后隐藏着的一股暗流。

This has continued into the 21st century though without the undercurrent of geopolitical tension of games from the cold war era .

这种情形延续到了21世纪，尽管如今不像冷战时期那样，在比赛背后涌动着地缘政治紧张的暗流。

In addition , there is the persistent undercurrent of japanese corporations buying yen as they repatriate profits or income earned off investments abroad .

此外，随着日本公司将海外投资获得的利润或收入转回国内，产生了这些公司持续买进日元的暗流。

And given the size and growth of the chinese economy , plus the undercurrent of concern about china in the west , these sponsors have allocated more of their global olympics budgets than ever to marketing their brands in the host nation .

鉴于中国经济的规模和增长情况，以及西方国家担忧中国的暗流，这些赞助商从各自的全球奥运预算中拿出超过以往任何时候的资金，用于在主办国推广它们的品牌。