羞于启齿的英语翻译

“羞于启齿”对应的英文单词有：be too shy to speak out、be not able to talk because of shyness、too embarrassing to say it ，一共3个，具体意思及用法如下：

be too shy to speak out难以启齿；羞于启齿

be not able to talk because of shyness羞于启齿