i think you should try your best to learn it.(同义句)i think you should learn it _____ _____.

i think you should try your best to learn it.(同义句)i think you should learn it _____ _____.
i think you should try your best to learn it.(同义句)
i think you should learn it _____ _____.

i think you should try your best to learn it.(同义句)i think you should learn it _____ _____.
by heart

with effort
应填尽全力的意思

I think you should learn it by yourself.

think you should learn it the hardest