There is nothing to guarantee that everybody is willing to make the effort; there is no assurance that the learner will have any adequate return for his toil.

没有什么可以保证每个人都愿意付出努力；学生的辛苦学习是否能得到适当的回报，这是没有把握的。

youdao

Don't rob the learner of the opportunity to think!

不要剥夺学习者们思考的机会！

youdao

If the purpose is learning, the learner has to stay engaged.

如果目的是学习，学习者必然需要保持专注。

youdao

Environmental groups have applauded the project. Howard Learner is executive director of the Environmental Law and Policy Center, which advocates for the development of eco businesses.

VOA: standard.2010.02.15

The learner protests as he's being shocked more and more but the experimenter continues to request obedience.

随着被电击次数增多，学习者抗议了,但实验者继续要求他服从。

耶鲁公开课 - 心理学导论课程节选

As the teacher is with the learner next to him, it goes down.

如果电击者与被电击者一起,站在被电者击旁边，致命电击次数减少。

耶鲁公开课 - 心理学导论课程节选

The community learning centre (CLC) manager is there if needed to support the learner.

UNESCO: Non-Formal and Continuing Education Programme

These questions also guide the learner to find critical solutions to problems addressed in the subjects being taught.

UNESCO: Adult Literacy Tutors Association (ALTA)

Milgram found that 65% (26 of 40) of participants administered the maximum voltage even after the learner had stopped responding.

FORBES: What Are Some Of The Most Shocking Revelations Of Human Study?