一心一意

例句：

1. 1. He worked hard and achieved success with one hundred percent dedication.
   他全力以赴，取得了百分之百的专注。
2. 2.The teacher asked the students to concentrate on their lessons, showing one-pointed attention.
   老师要求学生们集中注意力听课，表现出了专注的态度。
3. 3.The team members worked together with one heart and one mind to achieve the goal.
   团队成员齐心协力，为了共同的目标而努力。