She celebrates her birthday twice a year.
女王每年過兩次生日。

The queen's real birthday is April 21, but the country doesn't officially celebrate until June 11.
女王真正的生日是4月21日，但其官方壽辰是6月11日。

Monarchs with birthdays in colder months typically schedule an additional, official birthday when the weather is likely to be better for a parade. Elizabeth has one every June.
生日在較寒冷月份的君主通常會安排一個額外的官方生日，那時天氣可能更適合進行游行。伊麗莎白每年六月份都會額外慶生。