the amount of profit that an investment makes within the first financial period, that compares the income to the original cost 期初利润（在第一个财政期间内的投资利润）
the amount of interest that a bond offers when it is first issued 期初收益率（债券首次发行时的利息收入）◆a 10-year bond with a face value of $1 000 and an initial yield of 6.5% 期初收益率为 6.5%、面值为 1 000 元的 10 年期债券