NOTE: the table is only a reference for learners in non-Chinese speaking countries and self-study time is included in the learning hours.

备注：以上学习时数，包含自学时间，适合非华语地区学习者。

youdao

There are hundreds of thousands of pieces of content representing thousands of learning hours which are freely available in repositories all over the world.

在世界各地各个知识宝库，存放几十万件内容，可自由获取，用于数千个小时的学习。

youdao

The habit of keeping certain hours is of very importance to successful learning.

坚持一定时间的习惯对成功的学习是非常重要的。

youdao

Business students spend hours and hours learning how to write a business plan.

VOA: special.2009.06.26

Another value for community learning we set up to have office hours, synchronized office hours, with the students and the professor.

学习社群的另一个价值,在于给学生和教授，制定办公时间，有规律的办公时间。

麻省理工公开课 - 媒体、教育、市场课程节选

They clearly missed Hill after learning about four hours before the game they would be without him.

WSJ: Anthony has 28, Knicks beat Pacers to stay alive

Indeed, the average student is studying for fewer hours and learning less than in the past.

ECONOMIST: Many American universities are in financial trouble

We can keep one million students learning beyond regular school hours, when parents work and juvenile crime soars.

CNN: Prepared Text of Clinton's State of the Union speech