在澳大利亚或加拿大留学,打工能挣回学费和生活费吗

澳洲是不可以的，签证只允许打工20小时/每周。
你能赚够生活费，但学费是没什么希望，除非你学TAFE，再加打黑工。
而且如果你的资金担保不足你整个留学期间的学费加生活费的 话，是不给签证的。

合法的收入基本没问题。只要能保证合理的支出。
做点需要脑力活动的工作，不要除了出卖体力就没法保证字的生活需要

学费没可能...生活费可以...当然如果你想黑下来..不读书光打工...还能存些钱

There are new rules in Canada. After 6 months, you can start working, as long as you continue to attend school with good grades.

For tuition and living, you need 20,000 canadian dollars. Assuming you earn 6 to 7 dollars an hour, you have to work 2857 hours a year, i.e. 54 hours a week, which is not quite possible, unless you find a very well paid job.

Canadians usually make about 8000 dollars during the summer working full time, but they receive government subsidy during the school year and pay a lower tuition fee.

The math is not quite right for visa students. Aim at 8000, but 20,000 to cover all expenses is too high the bar.

但是工作会比较难找，虽然留学生打工合法，但是很多雇主不想聘用学生。