miss在是什么时候是思念~什么时候是错过?

我认为,要结合语境来看,单独看没有什么意义的.

I miss you基本上不会用来表示我失去你。。。
一般现在时表示做动作的能力，习惯，真理，思维，感情，经常性的等。
如果要表示失去，一般是我失去了你，或者我将失去你，基本不会用一般现在时。

那得看你怎么用
比如说：
i miss you 一般人都知道是我想你的意思
然而
you are missing
or
someone/something is missing
就是失去的意思
一般我失去你了不说i miss you
都说 i lose you/ i lost you
嗯，大概就这样
自己平常注...

Missing you. means i think a lot about you
Missing in action. means nobody knows where you have gone when you are supposed to be on duty.
I missed the bus. means the bus moved on without you.
He missed the opportunity to score at the crucial moment. -> sports, cannot score in a game.

miss 加人指想念。加物指错过。
而lose加人加物都可以做失去讲。