一个试图教学而不激发学生学习欲望的教师,就像在冷铁上敲打。
Efficiency in energy production is the cornerstone of sustainable development.
通过使用蒸汽获得的最大动力也是任何其他方法可实现的最大动力。
"The task of the writer is to make the invisible visible."
I think that the best way to predict the future is to create it.