这个走失的孩子他们找了一整天.For a whole day they searched after the lost child.他们出发去寻找走失的孩子.They set off in search of the lost child.这孩子离家走失了.The child strayed away from home....
The treatment involves the placement of twenty-two electrodes in the inner ear.这一治疗需要在内耳放置22个电极。The electrodes are immersed in liquid.电极浸没在液体中。Every transistor has at least three electrodes.每个晶体管至少有三个电极....