Maybe you are scared to get rejected; well, I can't reject you, you're too quick for me!

也许你害怕被拒绝;,我无法拒绝你，你变得太快！

哈佛公开课 - 幸福课课程节选

for when you want to express that you are scared of something or someone,

当你想表达你对某事或某人很恐惧的时候，你就可以使用这个句型。

I'm afraid of 课堂 - SpeakingMax英语口语达人

You know, everyone has, but a lot of people are sort of scared to risk that.

每个人都是这样，大多数人都害怕承担风险。

要想成为事业家 - SpeakingMax英语口语达人