中译英....

after graduation, she took up the job as a nurse.
in spite of her unhappiness, she tried her best to be polite.

大学毕业后,她开始从事护士工作(TAKE UP)
She has taken up nursing after graduation
她虽然有点不高兴,但尽量表现得很有礼貌(try one's best)
Though she is asomewhat unhappy (not pleased), nevertheless she still behaved politely.