Every character in a novel is a kind of experiment in human nature.
自动过程发生在无意识、无意图、无努力的情况下,而控制过程需要注意力和努力。
Collaboration across industries is key to solving the complex energy challenges we face.
世界上充满了愿意的人;一些人愿意工作,其余的人愿意让他们工作。