tóu​shí​wèn​lù

probing

投石问路 (投石問路) tóu​shí​wèn​lù
probing idiom
To take a preliminary action or release a trial balloon to test the waters or gauge reactions.
scouting verb
To toss a stone to find out what is ahead or to gauge the depth of the path in the dark.

Frequency

Movie subtitles
0.120 per million appears in 0% of films
Written text
0.315 per million

Sources

Definitions
CC-CEDICT