The yen is to be revalued.

日元的兑换价将调高。

《牛津词典》

The yen is weakening. But Tokyo dare not raise its interest rates again.

日元在贬值。但东京不敢再次上调利率。

《柯林斯英汉双解大词典》

youdao

SDRs,which are worth about $1.50 can be exchanged for the leading currencies, including the dollar, the euro and the yen.

VOA: standard.2009.04.20

Yen worked on the course last year and she's the senior of the teaching fellows that are working on the course this year.

叶从去年开始就为这门课工作,她是今年这门课程的助教中,较为资深的一名

耶鲁公开课 - 生物医学工程探索课程节选

The shakiness in world stock markets did not help the dollar, which is at levels against the yen last seen 14 years ago.

VOA: standard.2009.11.27

There are a number of factors contributing to the yen's rise, currency traders say.

FORBES: Magazine Article

The dollar fell against the yen late in the day after an earlier rally.

WSJ: Stocks Slide but Still Up for Month

Sony said the yen's recent fall, which makes its goods cheaper for foreign buyers, boosted sales.

BBC: Sony reports first annual profit in five years