be responsible for

对…负责任的；对…承担责任的

be on firm ground, be on hands and knees, be on one's mind, be on the advance, be on the drink, be opposed to, be out for, be out of employment, be out of one's mind, be out of step, be out of style, be pleased with, be popular with, be prejudiced against..., be qualified to, be related to, be relevant to, be reluctant to, be remarkable for, be representative of, be responsible to sb, be restricted to, be rewarded with, be rid of, be ringed with, be satisfied with, be seated, be short of, be skilled in, be sought after, be squared away, be subject to, be subversive of, be superior to, be supposed to, be supposed to do sth., be sure and..., be sure of, be sure of oneself, be surprised at,