同根常考词汇:需掌握
◆rude[rud]a.粗鲁的,无礼的,残暴的
举例:He was punished because he was rude to the policeman.
他因为对警察不礼貌而受了处罚。
同形:ruthless[‘ruθlis]a.残忍的,无情
crude[krud]a.粗鲁的,简陋的,天然的,未加工的:n.原油