giveup與givein都有“放棄，讓步”之意。一、但giveup指行為者碰到某種困難或原因而自己主動放棄；givein指行為者屈於某種壓力而被迫按別人的要求去做，側重於屈服。二、giveup可作vt.,後接名詞或動名詞作賓語；而givein只作vi.,後不接賓語。如：1、Theydecidedtogiveuptheirplan.他們決定放棄計劃了。2、Whataheavysmokeryouare!Giveupsmokingandtakemorecareofyourself!你個煙鬼，把煙戒了，多關心一下自己吧！3、Hismothergaveinandboughthimanewbike.他母親拗不過他，只得給他買了一輛新腳踏車。希望幫到你望採納謝謝加油

“give up”意思是：放棄，交出。“give in”意思是：屈服，讓步，交上。

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