Canada's national flag, a symbol for Canada Day, can be seen everywhere and a lot of people paint their faces red and white, which are Canada's national colors.

加拿大国旗是加拿大国庆日的象征，随处可见。而很多人会把自己的脸涂成红色和白色，这是加拿大的国色。

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ABOVE: Pressing the red button at the Calgary Stampede, Canada, 8 July.

上图：7月9日，加拿大卡里·加里的牛仔节，一起按下红色按钮。

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I read that in 1957, the colour of the maple leaves on the arms of Canada was changed from green to red, one of Canada's official colours.

我了解过。1957年加拿大国徽上的枫叶从绿色改为红色，这是加拿犬官方使用的颜色之一。

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In 1965, Canada adopted the Red Maple Leaf as its new national flag.

CNN: Saturday,

Canada also got rid of red ink that decade with a five-year period where spending grew by an average of only 1 percent per year.

FORBES: Balancing The U.S. Budget Is Simple With Modest Fiscal Restraint

The duchess wore a white dress and red hat - the colours of Canada's flag - and the Queen's maple leaf brooch.

BBC: Canada royal tour: Duke and duchess move on to Quebec