Persist的同源詞
* subsist
v.〔以很少的食物或錢〕維持生活，生存下去
We had to subsist on bread and water.
我們不得不靠少量的面包和水維持生存。
* destitute
a. 一無所有的，貧困的
The floods left many people destitute.
這場洪水使許多人變得一無所有。

* insist
v. 堅持或堅決要求（某事物）
"You really must go!" "All right, if you insist."
“你真得走了！” “好吧，你一定要我走，我就走。”
I insist that you take immediate action to put this right.
我堅決要求你立刻采取行動把事情處理好。
Mike insisted that his wife was wrong.
麥克堅持認為他的老婆是錯的。
* insistent
a. 堅持的，堅決要求的
She was insistent that they should all meet for dinner.
她堅持要大家聚在一起吃晚飯。
They were insistent on good manners.
他們堅持要舉止文雅。