Encara no tenim significats per a "whistle sound".
1Somebody made a wolf- whistle sound from one of the nearby buildings.
2Vaguely, in the midst of his great excitement, he had heard a whistle sound as he dropped inside the wall.
3The whistle sounds, punctually to the stroke of six; we are off.
4At the same moment a shrill whistle sounded in the opposite direction.
5The body drew in its breath with a whistling sound and moved.
6Overhead a strange noise filled the air; a shrieking, whining, whistling sound.
7Instantly the whistles sounded, and my hearties came bounding into the field.
8A shrill whistle sounded among the shrubbery, and the speaker became mute.
9Its whistle sounded, and soon it came winding through the sparse woodlands.
10The whistle sounded,-onelong, wild scream,-andthe speed of the train slackened.
11High and clear and shrill, a familiar whistle sounded back of them.
12A whistle sounded down the line, a short nervous blast twice repeated.
13While she wavered, a loud whistle sounded, and the train moved off.
14A whistle sounded, two other waiters rushed out, and the battle began.
15The theatre's curtain should go up when the whistle sounds, not before.
16Then a whistle sounded and all the visitors filed through the portal.