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.
垂善笃知
感谢你
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
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.
神乐的尸舞
猫和老鼠的音乐么？
