The only way to learn mathematics is to do mathematics.
学习数学的唯一方法就是做数学。
The meat processing industry has a responsibility to balance efficiency with ethical practices.
The lab is where imagination meets reality, often with explosive results.
爱情中的欢乐和痛苦是交替出现的。
"Time is not a line but a dimension, like the dimensions of space."
"I don't complain. I accept the challenge and I work."