1. 感覺 VS 感受 感覺：more related to physical feeling EX: 你生病一週了，現在感覺如何? (You have been sick for the whole week. How do you feel now?) (asking physical condition) 感受：more related to mental feeling EX: 聽到那則新聞，你現在感受如何? (After knowing the news, how do you feel now?) (asking mental condition) And I personally think 感受 is sometimes interchangable with 感覺 but it depends on whom you ask. (Also to me, I find 感受 more like a written language and so a little more formal). 2. 覺得 - you can use this to express your opinion, usually translated as (I) think or in (my) opinion. For example, 我覺得你人很好 ( I think you are a good guy; in my opinion, you are a good guy). EX2: 他覺得我很醜 (He thinks I am ugly.) Hope this post helps.

1，感觉，比较 主动：我感觉他是个好人。（不可说感受） 感受，比较 被动：我感受到来自他的威胁。（一种来自他人的压迫感，被动接收）。 我感觉今天天气很好yes. / 我感受今天天气很好no. 看了这篇新闻，可以告诉我你有什么感受吗？ 摸了60°C的水，可以告诉我你有什么感觉吗？ 2，感觉到 / 感受到 ：我感觉到/感受到 了来自他的威胁。（可以互换，感觉加了“到”字，就比较被动了）

感觉 implies the feeling you have in a short time, and is more used for physical activities, but sometimes for mental activities. 我感觉一点冷，I feel a bit cold. And 感受 is more about something you have experienced , which would take longer. 我可以感受到大家对我的喜爱。I can feel that everyone likes me. 觉得，to express someone's opinions.

感受=feelings that made by something or someone 我感受到工作上的壓力 , 我感受到你喜歡這個食物 感觉=feel, feeling 我感覺天氣寒冷 觉得=think, thought, 我覺得你喜歡他 ,我覺得這個食物很好吃