“give up”意思是：放弃，交出。

“give in”意思是：屈服，让步，交上。give up[v]英英释义：lose or lose the right to by some error,offense,or crime.同义词：forfeit/throw overboard/waiver/forgogive up with the intent of never claiming again.同义词：abandon例句：Even if your visit extends only as far as Sydney,don't give up on seeing Australian wildlife.give in[v]英英释义：submit or yield to another's wish or opinion.同义词：submit/bow/defer/accedeconsent relucantly.同义词：yield/succumb/knuckle/under/buckle under例句：Most inportant is to not give in when the next quarterly challenge comes up.