窍（竅）qiào

 ❶ （窟窿） aperture
❷ （事情的关键） a key to sth.: 诀 ～ knack; trick of a trade; 他对五线谱一 ～ 不通。 He is utterly ignorant of staff [stave].
◆窍门 key (to a problem); know-how; knack; secret of success; skilful method

• intradisciplinary
• intragenic
• intragroup
• intraindividual
• intramural
• intranational
• intranet
• intransigent
• intransit
• intransitive
• intrant
• intraparty
• intrapersonal
• intraproposition
• intrapsychic
• intraservice
• intrastate
• intratank
• intratheater
• intrauterine device
• intra vires
• intreasure
• intrench
• intrenchant
• intrepid