求翻译：由上例可以知道，尽管剩余现金投资名义上有每年6%的利率，但是澳元兑美元汇率的降低，实际利率下降成为负值。因此，此项投资认为是不成功的。是什么意思？

Can know from the example above, the remaining cash investment is nominally a 6% annual interest rate, but the Australian dollar against the dollar has declined, real interest rates become negative. Therefore, this investment is unsuccessful.

By the example you know that, although nominally remaining cash investment is 6% per year in interest rates, but the Australian dollar against the US dollar lower, the actual decline in interest rates as a negative value. Therefore, this is an investment that has not been a success.

May know by on example, although the surplus cash investment has the every year 6% interest rate in name, but the Australian Dollar exchanges US dollar exchange rate depression, the real interest rate drops into the negative value.Therefore, this investment thought is not successful.

Can know that in the previous example, despite the nominal annual interest rate of 6% residual cash investment, but the Australian dollar lower against the dollar, falling real interest rates negative. Therefore, the investment considered to be unsuccessful.

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