The Duchess of Cambridge took part in her final engagement ahead of her maternity leave on Thursday - and royal watchers believe this indicates her due date.

　　星期四凯特王妃参与了产假前的最后一次活动，皇室观察员们相信这也暗示了她的预产期。

　　Fans believe that Kate, 36, could give birth to her third child over the weekend of the April 28-29.

　　粉丝们认为，36岁的凯特可能会在4月28日~29日的周末生下她的第三个孩子。

　　If they are correct the Duke and Duchess of Cambridge will be toasting not only their new arrival but also celebrating their seventh wedding anniversary .

　　如果他们猜对了，剑桥公爵夫妇不仅将庆祝他们新生儿的到来，还将庆祝他们的第七个结婚纪念日。

　　The prediction is based on the Duchess' previous maternity leaves with Prince George and Princess Charlotte.

　　这项预测是根据凯特王妃之前生下乔治王子和夏洛特公主时的产假安排进行推断的。

　　When pregnant with George in 2013, Kate began her maternity leave on June 16 having attended her final engagement in the form of Trooping of the Colour a day earlier.

　　当凯特王妃在2013年怀上乔治的时候，她于6月16日开始休产假，而她产假前的最后一次活动则是前一天的阅兵仪式。

　　Her firstborn arrived 38 days later on July 22, just over five weeks after her maternity leave began.

　　她的第一个孩子是在7月22日，也就是38天之后出生的，正好在她休了五个周产假之后。

　　Similarly Princess Charlotte's arrival in 2015 followed almost exactly the same pattern, having been born just over five weeks after her mother's final engagement.

　　同样的，2015年夏洛特公主几乎是在相同的情况下出生的，她也是在凯特王妃进行最后一次活动五个周之后出生的。

　　Kate and William visited the Stephen Lawrence Centre in London on 27 March and 37 days later Charlotte was born on May 2.

　　凯特和威廉姆于3月27日访问了伦敦的斯蒂芬·劳伦斯中心，而37天之后，也就是5月2日，夏洛特出生了。

　　If the couple's third child follows the same pattern we can expect our newest member of the royal family on either April 28 or 29.

　　如果这对夫妇的第三个孩子也按这样的模式出生，我们有望在4月28日或29日迎来皇室的新成员。

　　This morning a Kensington Palace spokesperson confirmed: 'Today's public engagements by the Duke and Duchess of Cambridge will be Her Royal Highness's last before starting her maternity leave.'

　　今天早上肯辛顿宫的发言人证实：‘剑桥公爵夫妇今天参与的公共活动将是凯特王妃产假前的最后一次活动。