苏联是一个恐惧的文明,人们生活在持续的对夜间敲门声的恐惧中。
We must listen to the science and act with urgency to address global energy challenges.
Every seed holds the potential to change the world.
追求真理是人生的崇高目标。
The teacher must believe in the potential of his students.
Happiness is not something you postpone for the future; it is something you design for the present.