試探某人(對某事)的看法;探口風
sound sb out (about / on sth)
to try to find out from sb what they think about sth, often in an indirect way
I wanted to sound him out about a job.我想就一項工作探探他的口風。
釋義來自《牛津高階英漢雙解詞典》第 9 版