1. C 哨子，汽笛　an instrument to whistle
2. C 口哨声，汽笛声　the high sound made by passing air or steam through a small tube-shaped area, either an instrument or a mouth

　blow〔sound〕 a ～　鸣汽笛，吹哨
　give a ～　发出（口）哨声
　shrill ～　尖锐的哨声
　warning ～　警笛
　bird ～　鸟鸣哨子
　fire ～　救火警报声
　police ～　警笛
　steam ～　汽笛
　referee's ～　裁判员的哨子
　at sb's ～　听某人的使唤

　The referee blew a whistle at the end of the game.　裁判在比赛结束时吹响了哨子。
　We heard the whistle of a train.　我们听到了火车的汽笛声。

1. vi. & vt.吹口哨　 make a sharp, clear, piping sound or note with the lips or with a whistle; produce by whistling
2. vi.鸣笛 force air or steam through a whistle　
3. vi.呼啸着前进 move with a whistling sound　
4. vi.空指望　 ask for sth with no chance of success

　～ a tune　用口哨吹小调
　～ desperately　不顾一切地吹口哨
　～ merrily　愉快地吹口哨
　～ plaintively　吹出悲痛的调子
　～ repetitiously　重复地吹奏
　～ sharply　吹出尖刻的声音
　～ thinly　吹出细小的声音
　～ away　吹着口哨离开
　～ away to　突然去（某地）
　～ back　用口哨召回
　～ one's dog back　用口哨把狗唤回来
　～ in　突然〔迅速〕进入；召集（议员）
　～ off to　突然去（某地）
　～ out　突然拔出
　～ round for money　呼吁人们捐款
　～ up　吹口哨召来，召集；迅速抓起；挑起，煽动
　～ up the crowd　煽动群众
　～ up reinforcements　召来增援部队
　～ at〔to〕　向…吹口哨
　～ for　吹口哨召唤
　～ in the dark　吹着口哨壮胆
　～ into　把…（强制）变成，煽动…进入（某种状态）
　～ past　呼啸而过
　～ round the corner　迅速转过拐角
　～ through　（风）呼呼地吹过（树枝）
　～ with　因…而吹口哨
　～ with surprise　因惊奇而发出口哨声

　Can you whistle?　你会吹口哨吗?
　Who whistled just now?　刚才谁吹口哨了?
　The boy was whistling while he was working.　那男孩一边干活，一边吹着口哨。
　He came home for dinner whistling cheerfully.　他欢快地吹着口哨回家吃饭。
　He whistled happily as he rode along on his bike.　当他骑着自行车行进时，他快活地吹着口哨。
　The boy was whistling away merrily.　那男孩愉快地吹着口哨离开了。
　The train whistled and steamed off.　火车鸣笛开走了。
　The driver whistled before reaching the level-crossing.　司机在抵达交叉口之前先鸣汽笛。
　The cold wind whistled past.　寒风嘘嘘吹过。
　Another bullet whistled by.　又一颗子弹呼啸而过。
　The bomb whistled down.　炸弹发出嘘嘘声落下来。
　The boy whistled a happy tune.　那孩子用口哨吹奏愉快的曲调。
　The referee whistled the end of the match.　裁判员吹哨子宣布比赛结束。
　Whistling the merry tune, Jack fixed the tyre.　杰克一边吹着欢乐的小调，一边装着轮胎。
　Six students in our class whistled a chorus.　我们班有六位同学用口哨合吹了一首曲子。
　The musician is whistling a tune merrily.　那乐师愉快地吹奏着一支歌曲。
　They whistled arrows at us.　他们把箭嗖嗖地向我们射来。
　The policeman whistled Henry to stop.　警察吹警笛叫亨利停下来。
　He whistled his hounds to come back.　他吹口哨让猎狗回来。

 ♣ whistle for　(v.+prep.)
1. 〈非正〉空想 want sth without getting it
　〔说明〕 whistle for不用于进行体。
　I'm not prepared to use any firm's money to pay this man, let him whistle for his money!　我不想用商行的任何钱付给这个人，让他做他的美梦吧！
　She didn't even thank us for helping her, so the next time she needs help she can only whistle for it.　对于我们的帮助她连谢都不谢，下次别指望我们再帮她了。
2. 用口哨召唤 call sb by whistling
　John whistled for a taxi.　约翰用口哨召唤出租汽车。
　The policeman whistled for the motorcar to stop.　警察吹警笛让汽车停下来。
 ♣ whistle in the dark　(v.+prep.+n.)
　〈非正〉在危险、威胁等面前假装无所畏惧 pretend fearlessness in the face of danger, threat, etc.
　〔说明〕 whistle in the dark常用于进行体。
　She says that she's not afraid of losing her job because of what she did, but I think she's just whistling in the dark.　她说她不怕因所干的事而失业，不过依我看她不过是说大话罢了。
 ♣ whistle through　(v.+prep.)
　呼啸穿过　move with a whistling sound
　The wind whistled through the eaves.　风呼啸着穿过屋脊。
 ♣ whistle to　(v.+prep.)
　对…吹口哨〔吹奏〕　produce by whistling toward sb
　He whistled to his dog and it came running.　他吹口哨唤狗，狗跑了过来。
　He whistled a foreign tune to us.　他为我们吹奏了一首外国曲调。
 ♣ whistle up　(v.+adv.)
1. 用口哨召唤 call sb by whistling
　He whistled a waiter up to their table.　他吹口哨让服务员到他们的桌子这边来。
　He whistled up his dog.　他用口哨召唤他的狗回来。
　If we're all ready, I'll just whistle up the dogs and then we can go.　如果我们都准备妥当，我就吹口哨把狗唤来，而后就出发。
2. 召来，呼吁 call on (sb)
　The commander has whistled up reinforcements.　指挥官召来了增援部队。
　They tried to whistle up some help.　他们想通过呼吁获得一些支援。
3. 〈非正〉从有限或艰难的材料中搞出 make sth from poor or scarce materials
　〔说明〕 whistle up常不用于进行体。
　Life's not easy for a good teacher, having to whistle up new ideas for lessons every day.　对于一个好老师来说生活并非容易，他每天都必须探索，寻求新的见解来讲授课程。