Druecker        
[der] ①击。辩论。回者 squelcher, retorter
②把。推 handle, pusher③镇静剂 depressant, depressing agent④闩锁钥匙。弹簧锁钥匙
latch key⑤（快门）触器 trigger

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[der] 按钮，按键；把；触器；推杆