她有很多好的想法，但就是不善于表达。

She has lots of good ideas, but she has difficulty formulating them.

《牛津词典》

玛丽亚认为她不善于当面表达自己的感情，所以她给父亲写了一封信。

Maria doesn't think she is good at telling her feelings face to face, so she writes a letter to her father.

youdao

你已经意识到，你不善于表达自己的感觉，而这导致了你们的婚姻问题。认识到问题是良好的开始。

You already realise that you aren't good at expressing feelings and that this causes problems in your marriage. Recognising the issue is a good start.

youdao

So you can only hurt the one you can love but the one who always loves you sometimes has trouble showing you that they love you.

所以你只会被所爱的人伤害,但是一直爱你的人,有时不善于表达他们对你的爱意。

耶鲁公开课 - 心理学导论课程节选