✔ 最佳答案
if it's possible, then go earlier ~ like around 1 month or even more than that...
becuase you can get used to the environment and at least know your way around the place before school starts
and you can also take the time to actually experience and travel around US a bit ...
cuz after school starts, you may not get enough time to actually enjoy staying at USA =) thus should take this chace to explore the place a bit
plus if you are not staying at school dorm., maybe you would like to go earlier to find an apartment? if so, then better go 4-6 weeks earlier
for other preparation, i think around 1-week is actually good enough
Good Luck ~
