Just the thought of you makes me happy. It only takes the thought of you to make me happy. I just have to think of you and I am happy.

You need to complete the sentence for it to make sense .Example: 1.The very thought of you liking me makes me happy. 2. The very thought of you makes me sick. Our relationship is finished.

"The very thought of you" This is means "The instant I think of you" More complete sentence would be "The very thought of you makes me feel happy"

謝謝大家:D

“the very thought of you“ = “一想到你“这样的话需要上下文。像：“the very thought of you makes me happy" 一想到你我就高兴。