eager to listen; attentive；渴望去听，全神贯注；
The ear is the organ by which a person hears. So, if we figuratively say that "you are all ears," it means that at that moment you are keenly listening to whatever is being said. It&`&s as if no other part of your body mattered except your ears. This idiom is about three centuries old.
耳朵是用来听的器官；所以如果我们象征性地说：I&`&m all ears.我全是耳朵，那么意思就是说你在全神贯注地去听，其他的身体部位已经无关紧要了。这个成语已经有大约三个世纪的历史。
Is there anything you&`&d like to tell me? I&`&m all ears.
Now tell me all about your adventures in Africa last summer. I&`&m all ears.