他是个圆滑的[狡滑的/精明的/聪明的]人。 He's a smooth/slick/shrewd/clever operator.
我在整个生存期间从未做过一件聪明的事，虽则我写过许多一直都被认为是聪明的作品。 I never did a single wise thing in the whole course of my existence, although I have written many which have been thought so.
他是一个聪明的男孩。 He is a smart boy.
博学者未必都是聪明的。 Learned men are not necessarily wise.
那个聪明的男孩把他老师所能教他的所有的知识都吸收了。 The clever boy absorbed all the knowledge his teacher could give him.
他是一个很聪明的学生。 He is a very apt student.
这个学生给出了一个聪明的回答。 The student gave an intelligent answer.
