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Results:
open system : 1）開放系
open state : 1）開口状態
open letter : 1）公開状
open issue : 1）未解決の問題
open sesame : 1）開けごまの呪文（ジュモン）;（困難な問題などの）有効な解決手段 2）開けごま[“The Arabian Nights"から]
open secret : 1）(an 〜)公然の秘密
open bite : 1）（病名）開咬
open sea : 1）公海
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open system

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