1.Someone with a keen mind is quick to understand things.
思维敏捷的人理解事物快。
2.But despite his rough edges, he had a keen mind and a ruthless grasp of power politics.
然而尽管他有些棱角，但却头脑敏锐，而且还是个冷酷的、玩弄强权政治的行家。
3.Being calm, cool and collected, he has a matter-of -fact style indicating a keen mind.
他能保持镇静，沉著，万事如常；也有一种切合实际的作风，显示敏锐的头脑。
4.You put your keen mind to the task and come to the wrong conclusion.
你又再用你那鸡婆又敏感的内在然后做出错误的结论
5.experts are rigid, and the one thing a keen mind must have is flexibility.
专家是刻板的，聪明的头脑必须要有灵活性。
6.Sean has a keen mind; he's very sharp in everything he does.
Sean头脑很敏锐，他做任何事情都很精明。
7.Rejoice in rejoices in a keen mind
拥有一颗敏锐的心