Listening — Bus Schedule Here is a bus schedule at a bus stop. It has th...

The mathematics of love by Hannah Fry Video 1 Today I want to talk to yo...

The unheard story of David and Goliath 大卫和歌利亚的故事 by Malcolm Gladwell So ...

Video 1 Today I'm going to talk to you about the problem of other minds....

Being a Global Citizen Video I I want to introduce you to an amazing wom...

流利说 Level 7 Unit 2 Part 3 Video II Machine intelligence is here. We're n...

流利说 Level 7 Unit 2 Part 2 Video 1 As a boy in Lima, my grandfather told ...