投资可再生能源和更清洁的技术是我们对可持续未来承诺的一部分。
Conflict is the gadfly of thought. It stirs us to observation and memory. It instigates to invention. It shocks us out of sheeplike passivity, and sets us at noting and contriving.
机器人是一种被设计用来完成人类工作的设备,但它并不是人类。