【中文版】

预期收益率浮动是指投资收益率的不确定性。它是一种投资风险，即投资者无法准确预测投资收益率。浮动收益率的幅度取决于多种因素，如市场环境、行业趋势、公司财务状况等。

预期收益率浮动对于投资者来说具有重要意义。在投资决策中，投资者必须考虑投资风险和预期收益的平衡。如果投资者选择浮动收益率的投资，他们需要更加关注市场动态和投资组合的表现，以便及时调整投资策略。

预期收益率浮动的具体表现形式包括：上下浮动、区间浮动、根据市场利率变动的浮动等。例如，一些债券的收益率会根据市场利率的变动而上下浮动；一些股票的收益率会根据公司的业绩和行业趋势而上下浮动。

总之，预期收益率浮动是投资风险的一种表现形式。投资者必须认真分析投资风险和预期收益的平衡，以便做出明智的投资决策。

【英文版】

Expected yield fluctuation refers to the uncertainty of investment yields. It is an investment risk, which means investors cannot accurately predict the investment yield. The range of yield fluctuations depends on various factors, such as market environment, industry trends, and company financial conditions.

Expected yield fluctuation is of great significance to investors. In investment decisions, investors must consider the balance between investment risks and expected returns. If investors choose to invest in yield with fluctuation, they need to pay more attention to market dynamics and the performance of the investment portfolio in order to adjust investment strategies in a timely manner.

The specific manifestations of expected yield fluctuation include upward and downward fluctuations, fluctuations within a range, and fluctuations based on market interest rate changes. For example, the yield of some bonds will fluctuate up and down based on market interest rate changes; the yield of some stocks will fluctuate up and down based on the performance of the company and industry trends.

In general, expected yield fluctuation is a manifestation of investment risk. Investors must carefully analyze the balance between investment risks and expected returns in order to make informed investment decisions.