Americans believe no one can sands still.If you are no moving ahead，you are falling behind.This attitude results in a nation of people committed to researching，experimenting and exploring.Time is one of the two elements that Americans save carefully，the other being labor.
新造的人123456
特好，我上大学的回忆，还有背景音乐🎵🎶
强凌志
要是有字幕就更好了
小袋鼠精 回复 @强凌志：
这是课本的
听友61660547
谢谢的不得了
垂善笃知
感谢你
他乡_c2
我想练习发音，背景音乐好重啊
贝贝丫子
Americans believe no one can sands still.If you are no moving ahead，you are falling behind.This attitude results in a nation of people committed to researching，experimenting and exploring.Time is one of the two elements that Americans save carefully，the other being labor.