1·Dogs have a keen sense of smell.
狗的嗅觉很灵敏。
—— 《牛津词典》
2·He has a very keen sense of people.
他对人的感觉特别敏锐。
3·The blind have a keen sense of touch.
盲人有敏锐的触觉。
4·He and his friend have a keen sense of humor.
他和他的朋友有很强的幽默感。
5·After retirement, he had a keen sense of loss.
退休后，他有一种强烈的失落感。
6·The man had a keen sense of justice and fair play.
此人具有强烈的正义感，做事光明磊落。
7·Jack: He is taking you in.He has a very keen sense of people.
杰克：他在琢磨你呢。他对人的感觉特别敏锐。
8·Has a keen sense of business priorities and adjusts work effort accordingly.
对业务优先权具有敏锐的感觉并据此作出工作调整。
9·Only a performer with a keen sense of timing could come up with events such as these.
只有具备敏锐感并会掌握节奏的表演者，才想得出诸如此类的大型魔术项目。
10·Women have such keen sense they can even smell smell and hear noises that do not exist.
女性的感觉是那么敏锐，她们能够闻出不存在的气味、听见不存在的声音。