Someone who is observant pays a lot of attention to things and notices more about them than most people do.
例句
That's a marvellous description, Mrs Drummond. You're unusually observant...您的描述令人惊叹,德拉蒙德太太,您真是独具慧眼。An observant doctor can often detect depression from expression, posture, and movement.善于观察的医生常常能从人的表情、姿势以及动作诊察出抑郁症。
ADJ
严格遵守教规的
An observant follower of a religion performs all the duties that his or her religion requires.