s socially incorrect in behavior
s (of persons) lacking in refinement or grace
a lacking civility or good manners
s (used especially of commodities) being unprocessed or manufactured using only simple or minimal processes
s belonging to an early stage of technical development; characterized by simplicity and (often) crudeness
a. 粗鲁无礼的, 粗陋的, 粗暴的, 原始的, 未开化的, 大略的, 崎岖不平的, 狂暴的
1. She was rude to the waiter when he brought the wrong order.
她对服务员很 rude，当他送错了订单时。
2. It's rude to interrupt someone while they are speaking.
在别人说话时打断是很 rude 的。
3. He apologized for being rude during the meeting.
他为在会议上 rude 而道歉。