要看上下文如何，如果单说我不告诉你，那就是I don't tell you.
I won't tell you我不告诉你Wouldn't you like to know?[口]我不想告诉你。I didn't want to tell you.我不想告诉你
I'm not gonna tell you.
I don't want to tell you!
I don't tell you.
