It was a hump about 25 feet (8 metres) long, covered with rough dark-grey hide like an elephant’s back. The creature it belonged to ploughed against the current for a while, and then disappeared.

那是一个大约25英尺（8米）长的圆形突出物，背部呈黑灰色、粗糙、好似象皮，逆着水流翻搅了一阵子之后，就消失了。

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Some used the platform of the conference to push back against calls for early implementation of "exit strategies" that would reverse the current extraordinary degree of monetary stimulus.

一些人利用本次会议的平台，反对过早执行“退出战略”，即逆转当前超常的货币刺激。

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So we beat on, boats against the current, borne back ceaselessly into the past.

我们奋力前行，小舟逆流而上，却不断地被浪潮推回到过去。

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The reasons for the current flight into Botswana go back to Namibia's war against South African occupation.

ECONOMIST: Africa��s pointing finger

The new tensions between Japan and South Korea come a week after American Secretary of State John Kerry visited both countries, in part to encourage them to set aside lingering tensions dating back to Japan's occupation of Korea through the end of World War II, and to strengthen their alliance against current regional threats.

WSJ: Abe Aides' War Shrine Visit Sparks Backlash