[交流] 情人节不应有遗憾——should/be supposed to用法浅析 已有5人参与

You should open up your heart and show your love to sweetheart instead of thinking that I was supposed to sent her/him flowers but I have had hung back.

should 主要用来说对的或有理性的事情
eg. Children shouldn't be allowed to play in the street.

be supposed to 可表示如下三含义：
1. 预期或意图要发生（尤其表示实际上并未发生）
eg. The meeting was supposed to take place on Tuesday, but we've had to postpone it.
      The place was supposed to be made into a commynity center.
2. 很多人认为是真的（但可能不一定就如此）
eg. Mrs Carver is supposed to have a lot of money.
      The work was not as simple as it was supposed to be.
3. 应该（此时和should用法很接近，但主要是指从规则或权威人所说的角度）
eg. We are supposed to check out of the hotel by 11o'clock.
      What's the matter with you? You're supposed to be thrilled.
      Is the squiggle supposed to be a signature?

The Valentine's Day is supposed to be full of love and happiness without regret. I suppose so.
Happy Valentine's Day to All !