persist
【英英释义】
v. if something undesirable persists, it continues to exist. 不喜欢的事物继续存在 V
if you persist in doing something, you continue to do it, even though it is difficult or other people are against it. 顽强坚持，执著 V in -ing / V with/in n / V with quote / V
to continue to exist.
【词义深度解析】
persist是不及物动词，做“继续存在”的意思时，主语往往是负面含义的事物，可以替换exist。
persist后面可以接in+v-ing，但是不接不定式。persist的主语不一定是好事，但persevere（重音在v，坚持不懈，锲而不舍）的主语一定指好的事。
【例句学习】
1. If the fever and cough persist, see a doctor.
2. Old traditions persist: women are still expected to marry young, bear children, and obey husbands and mothers-in-low.
be expected to 含有should的意思。
3. The scars of racial segregation persist. segregation又出现了，racial segregation是指种族隔离，种族隔离的伤痕依然存在。
4. Arguments persist over how to keep Israel safe.
本句中over...部分是主语arguments的补足成分。关于如何维持以色列安全的讨论还在持续。
5. Emerging evidence suggests that the consequences of mistreatment in childhood may persist down the generation, affecting a victim's children or grand-children, even if they have experienced no abuse themselves.
mistreatment n. 尤指身体上的虐待
新出现的证据表明童年时期的虐待会在代际之间传递，纵使一名罪犯的孩子或孙子他们自身没有受虐经历还是会受到影响。
【词汇运用】
1.搭配：
continue doing sth 坚持
adv: doggedly/stubbornly persist 不懈地/固执地坚持
prep: in/with persist in doing sth / persist with sth
continue to exist 持续
adv: still/ to this day 仍然持续/存留到今天 indefinitely persist 无期限地持续下去
V + persist: be likely to /tend to / be allowed to/ persist 很可能/往往会/被容许持续下去
prep: for 持续……时间 into 持续到…… through/throughout 持续整个……期间 until 持续到……为止
2.翻译：尽管官方予以否认，但谣言仍未平息。
The rumors still persist even thoght the government has denied them. （自己）
Despite offical denials, the rumors still persist. （参考翻译）
分析：参考翻译是一个简单句，更简练明晰。
2.生活场景应用
spring chill persists even in late March.