a quiet, non-participating, or unseen observer; an eavesdropper or witness.

listen to the pronunciation of a quiet, non-participating, or unseen observer; an eavesdropper or witness.
الإنجليزية - الإنجليزية

تعريف a quiet, non-participating, or unseen observer; an eavesdropper or witness. في الإنجليزية الإنجليزية القاموس.

A quiet, non-participating, or unseen observer; an eavesdropper or witness.
fly on the wall

James W. Gerard, ex-Ambassador to Germany, the first speaker of the evening, said that at that moment he would like to be a fly on the wall of the palace at Potsdam to hear what the Potsdam gang were saying about our soldiers.

a quiet, non-participating, or unseen observer; an eavesdropper or witness.
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