whistle

詳細解釋：

whis.tle

v.（動詞）
whis.tled,whis.tling,whis.tles
v.intr.（不及物動詞）
To produce a clear musical sound by forcing air through the teeth or through an aperture formed by pursing the lips.
吹口哨：通過迫使空氣穿過牙齒間隙或穿過由噘嘴形成的小縫隙而發出清晰的樂音
To produce a clear, shrill, sharp musical sound by blowing on or through a device.
吹哨子，鳴汽笛：通過吹擊或通過某種裝置而發出清晰、尖厲而刺耳的樂音

To produce a high-pitched sound when moving swiftly through the air:
發出嘯叫聲：當迅速穿過空氣移動時發出高音調的尖聲：
例句：
The stone whistled past my head.
石頭呼嘯著從我頭頂經過

To produce a high-pitched sound by the rapid movement of air through an opening or past an obstruction:
呼嘯：由於空氣急速通過一個開口或經過一障礙物時而發出尖厲的聲音：
例句：
Wind whistled through the cracks in the windows.
風從窗戶的裂縫中呼呼地灌進來

To emit a shrill, sharp, high-pitched cry, as some birds and other animals.
囀鳴：發出刺耳、尖銳、高音調的喊叫，如一些鳥及其它的動物所發出的聲音
To summon by whistling.
吹口哨召喚
v.tr.（及物動詞）
To produce by whistling:
由吹口哨而發出：
例句：
whistle a tune.
吹出一個調子

To summon, signal, or direct by whistling.
吹口哨召喚
To cause to move with a whistling noise.
由吹口哨而發出信號或指引：用哨聲使…行動
n.（名詞）

A small wind instrument for making whistling sounds by means of the breath.
口哨；哨子：一種很小的吹奏樂器，通過呼吸而發出哨聲
A device for making whistling sounds by means of forced air or steam:
汽笛：一種由受壓空氣或蒸汽產生哨聲的裝置：
例句：
a factory whistle.
廠笛

A sound produced by a whistling device or by whistling through the lips.
哨聲， 笛聲：由鳴笛裝置或從唇間吹口哨而發出的聲響
A whistling sound, as of an animal or a projectile.
囀鳴聲：尖厲高音，如動物或發射物而發出的聲音
The act of whistling.
吹，吹哨：口哨或哨子的行為
A whistling sound used to summon or command.
召喚哨聲，命令哨聲：用於召喚或發布命令的哨聲

<習慣用語>blow the whistle【俚語】
To expose a wrongdoing in the hope of bringing it to a halt:
揭發：懷著使違法行為得以中止的希望而告發：
例句：
an attorney who blew the whistle on governmental corruption.
一個揭發政府腐敗的律師

whistle in the dark
To attempt to keep one`s courage up.
給自己壯膽：試圖鼓起某人的勇氣
來源：
Middle English whistlen
中古英文 whistlen
from Old English hwistlian
源自 古英文 hwistlian