striven

例句：

1. 1. She strove to improve her English skills every day.
   她每天都努力提高她的英语技能。
2. 2. The team is striving for excellence in their performance.
   这个团队正在努力在表现上追求卓越。
3. 3.He strived for success in his career despite many challenges.
   尽管面临许多挑战，他仍努力在事业上取得成功。