"增强学生的自信" 可以翻译为 "enhance students' self-confidence"。

这句话的来源可能是为了帮助学生提升自信心，从而提高他们的学习能力和成就。

以下是一些可以帮助增强学生自信的英文例句及其中文翻译：

Encourage students to take on new challenges and tasks to build their confidence. 鼓励学生去接受新的挑战和任务，以增强他们的自信。
Provide opportunities for students to practice and succeed at tasks to build their confidence. 为学生提供机会去练习和成功完成任务，以增强他们的自信。
Give students positive feedback and praise to boost their confidence. 给予学生积极的反馈和赞扬，以提升他们的自信心。
Help students set achievable goals and celebrate their achievements to build their confidence. 帮助学生设定可实现的目标，并庆祝他们的成就，以增强他们的自信。