"感情淡了" 用英语可以说成 "emotions have become dull" 或 "feepngs have become less intense."
这个短语是指人们对事物或情况的兴趣和兴奋程度减少了。这可能是由于长期暴露而导致的厌倦或疲倦，也可能是由于某些其他原因而导致的。
例句：
I used to love going to the movies, but now the excitement has worn off and it just feels dull.
He had been in love with her for so long, but his emotions had become dulled over time.
翻译：
我曾经非常喜欢看电影，但现在兴奋感已经消失了，感觉很淡。
他一直爱着她很长时间，但随着时间的推移，他的感情变得淡了。