She persisted in her efforts to learn the language despite making slow progress at first.
尽管起初进步缓慢，她仍坚持努力学习这门语言。
2
v.持续，继续存在（问题或状况未消失）
If the symptoms persist for more than three days, please consult a doctor.
如果症状持续超过三天，请就医。
语感
persist = 不肯离场——可以是人的坚持，也可以是问题的存在
坚持持续坚持不懈
persist in doing sth.（坚持做某事）是义项一核心句型，常含「顽固」或「毅力」色彩，视语境而定。义项二（持续存在）多用于症状、问题或天气：The drought persisted for months.（干旱持续了数月。）。persistent 形容词：a persistent problem（顽固的问题），a persistent person（坚持不懈的人）。注意：insist on 强调「坚持主张」（insist on a point），而 persist in 更强调「坚持行动」。
陷阱
⚠️persist in doing（坚持做）vs. insist on doing（坚持主张）
He insists on his right to see the contract before signing anything.
✗
persist in 和 insist on 完全相同
✓
persist in doing = 坚持做某一行动（反复做，不放弃）；insist on = 坚持主张、要求某事（强调立场）
She persisted in applying for the scholarship even after being rejected twice.
即使两次被拒，她仍坚持申请这项奖学金。
Despite numerous setbacks, he persevered and eventually completed his doctoral dissertation.
尽管历经重重挫折，他仍坚忍不拔，最终完成了博士论文。
写作加分
✨ 加分词
替换：keep oncontinue
毅力励志类作文逆境话题议论文
普通
You should keep on trying even when it is difficult.
即使困难，你也应该坚持尝试。
加分 ✨
Those who persist in the face of repeated failure are more likely to achieve meaningful success than those who abandon their goals at the first obstacle.
那些在屡次失败面前仍坚持的人，比在第一个障碍前就放弃目标的人更有可能取得有意义的成功。
为什么更好：persist 比 keep on 更书面，配合 in the face of 和对比结构，论证更具说服力
常用搭配
persist in doing sth.坚持做某事
persist with sth.继续致力于某事
if symptoms persist如果症状持续（医疗常用）
persistent effort / problem / rain持续的努力 / 顽固的问题 / 持续的降雨