公元前八世纪以后，周王朝的统治逐渐衰弱，私学就在这种背景下产生了。After the eighth century B.C., the rule of the Zhou Dynasty gradually weakened, and private schools emerged in this context.
electric（adj）1用电的，电动的，2发电的，带电的，3使人震惊的 用作1.2时无比较级。与electrical的区别在于electric多指“与电有关的”，即“电产生的”“电带动的”“带电的”，而electrical多指“与电学有关的”The news had an electric effect.这消息顿时使群情激昂We went by electrical train.我们乘电车去的。He is an electrical engineer.他是一名电气工程师
