observant例句
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。
Observant walkers may see red deer along this stretch of the road.
观察敏锐的步行者可能在这一路段看到赤鹿。
You should be
observant of the traffic rules.
你应该遵守交通规则.