1. 形容詞
   觀察力敏銳的
   懂得察顏觀色的, 懂得的
   善於觀察的
   當心的, 深切注意的
   (人)observant of ...(事物):
   嚴格遵守...(規則等)的
   觀察到...的
   

   同義字詞
   alert,Argus-eyed,attentive,awake,open-eyed,vigilant,watchful,wide-awake
   absorbed,attentive,deep,engrossed,enthralled,focused,focussed,immersed,intent,rapt
   

例句

1. I was being observant , you see.
2. You can help by being observant .
3. My home was not an observant one.
4. He was a lively and observant lad.
5. Men said they were just observant .
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