1. If I want to say "more than a hundred years", which one is correct?
One of the example in ichacha "五十余年: fifty odd years" makes me wonder why 余 is used instead of 多. So, when should we use 余 and 多?
2. In almost every online dictionary I've checked, aside from being classifier for age ('years old'), 岁 can also mean 'year'. Is there any example of it being used to say 'year' but not age?