| 释义 | 
             
                two letter signal
                
            信号xìn hào 
 semaphore; signal; sign; call letter有文化修养的yǒu wén huà xiū yǎng de 
 lettered亮度信号liàng dù xìn hào 
 luminance signal; brightness signal detector; Y signal信札xìn zhá 
 letters熄灭信号xī miè xìn hào 
 black out signal故障信号gù zhàng xìn hào 
 trouble signal; breakdown signal视频信号shì pín xìn hào 
 vision signal; video signal状态信号zhuàng tài xìn hào 
 status signal; operation signal发信fā xìn 
 post a letter劝诫信quàn jiè xìn 
 advisory letter修函xiū hán 
 write a letter字面意义zì miàn yì yì 
 letter信号灯xìn hào dēng 
 signal lamp; pilot lamp; signal light信号塔xìn hào tǎ 
 signal box, signal tower, switch tower鸿雁传书hóng yàn chuán shū 
 a letter from afar; keep on shuttlecocking letters; mail a letter; messenger快递信件kuài dì xìn jiàn 
 express delivery letter, special delivery letter两个人liǎng gè rén 
 two people; two guys讯号xùn hào 
 signal风雅文学fēng yǎ wén xué 
 polite letters绝交信jué jiāo xìn 
 dear Jone letter邮简yóu jiǎn 
 letter card, letter sheet介绍书jiè shào shū 
 letter of introduction; letter of recommendation; referral letter存证信函cún zhèng xìn hán 
 legal attest letter到任国书dào rèn guó shū 
 letters of credence航空信háng kōng xìn 
 air letter, airmail letter
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