According to legend, Columbus, looking at an astronomical almanac compiled by a German mathematician, realized that a total eclipse of the moon would occur on Feb. 29, 1504.
据传说，哥伦布查阅了一位德国数学家编撰的天文年历，发现1504年2月29日将会发生一次月全食。
Feb. 29 is an intercalary day; leap year is an intercalary year.
2月29日是闰日；闰年是有添加日的年份。
The last time the central bank cut RRR was Feb. 29, 2016.
中国人民银行上次降低存款准备金率还是在2016年的2月29日。
应用推荐