Definition
to informally ascertain a person's thoughts or intentions on a specific matter to prepare or take suitable actions
探口风；询问意向
Before the meeting, I decided to sound her out about her thoughts on the proposal.
在会议之前，我决定探询她对提案的想法。
He wanted to sound us out about our views on the new plan so he could make adjustments before formally presenting it.
他想探询我们对新计划的看法，以便在正式提出之前做出调整。
She sounded out a few colleagues privately before the public discussion.
她在公开讨论之前私下探询了几位同事的意见。