常见例句A leap year occurs once every four years.每四年才有一次闰年。Some say that coins found heads-up are also luck, and that a coin minted in a leap year will bring good fortune.还有人说发现正面朝上的硬币也是吉祥的，铸造于闰年的硬币也能带来好运。 返回 intercalary year