His eyes narrowed for a moment. 他的眼睛眯了一会儿。

We are working on narrowing the gap between our points of view. 我们正努力缩小我们观点之间的差距。

We’ re working to narrow down the list of possible suspects. 我们正努力缩小嫌疑犯的范围。

narrow sth down to sth That narrowed it down to just two possibilities. 那使它减少到只有两种可能性。