8. Work 不能工作 (来源：英语麦当劳－英语快餐EnglishCN.com)
It is well known that Royals and careers don't mix well. As proven when Prince Charles' plan to work part time in a factory failed and Countess Sophie Wessex was forced to abandon her PR firm.
In Kate's case though, the whole unemployment scenario shouldn't be too difficult to handle. At 29 years of age she is the oldest spinster ever to marry a future king, and though she has a History of Art degree and years of life experience, Kate has spurned work wherever possible.
This is unless you count seven months as a casual accessories buyer for clothing chain Jigsaw and a short time working for the family company, Party Pieces.
Pinned by some as the unemployed woman marrying into a welfare family, we're reckoning the guys at Buckingham will keep her busy by sending her to lots of boat launches and pancake flipping gigs.
9. Sign anything unofficial 不能签任何非官方文件
As a potential future counsellor of state if William becomes king, Kate might at some stage have to sign government papers and brings legislation into force in her husband's place.
People in this position are strictly not supposed to sign anything that could lead to their signature being copied and forged.
Last year Prince Harry was in hot water when he flouted this rule by signing the plaster cast of a girl who had fractured her arm, a media report said.
The 17-year-old from Leicestershire was so excited she said her cast would be "going in a glass box", which the Queen might not have been too happy about.
10. Finish her dinner 在女王用餐完毕后不能进餐
If she is a slower eater than her grandmother-in-law, Kate could go hungry. In Britain, when the Queen stops eating, you stop as well, fork in hand.