围棋术语。单官，就是占不到“目”（即棋盘上的空交叉点，或称地域）的一手棋，只是用棋子占据棋盘上的一个交叉点。如图中的A点就是一步单官。
切尔西首席执行官肯杨向球迷保证，夏天的转会单上除了世界顶级球星外，还将包括若干优秀的年轻球员。
Chief executive Peter Kenyon has promised that Chelsea's list of summer transfer targets contains top level young players as well as world-renowned stars.
检务官：好了，请把报检单送到科长那签字，然后拿回我这。
Inspection affairs officer: It's OK. Please send this form to our section chief for signature then bring back to me.
检务官：这下全部都好了，给你通关单。
Inspection affairs officer: Now, everything is OK, here is the certificate for goods entry-exit.
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