Can I go to the United States without a visa with a Canadian Maple Leaf Card? Bonus points for satisfying answers

I am a new immigrant and am attending an ordinary high school. I have a Chinese passport and have never applied for a US visa. Do I still need to apply for a visa if I have a Maple Leaf Card? - Applying for a visa depends on what passport you hold. If you hold a Chinese passport, you need a visa to go to the United States. If you have a Maple Leaf Card, you also need a visa.

How long will it take to do it? - The schedule varies in each period. You can check the website of the U.S. Embassy and Consulate in Canada. It usually takes one or two weeks.

I want to go to the United States to find classmates during Christmas. I wonder how long it will take? - The validity period of your visa and the time you can stay in the United States are two different concepts. Usually if you have a Maple Leaf Card, and if other conditions are OK, you can sign a multiple-entry visa valid for 10 years in the United States. But every time you enter the United States, U.S. border officials will give you a period of stay in the United States (such as three months, six months). When this time is up, you must leave the United States, even if your visa is still valid.