mun イディオム

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carpet muncher

offensive term for a lesbian

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communist

stupid and/or bad

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communicate with

1．send a message to；share or exchange opinions，news，information，etc．与…交往；与…保持通讯联系
The army fighting on the battlefield communicated with the headquarters every minute．作战部队同司令部时刻保持着通讯联系。
2．join；connect与…相联
Our school library communicates with a park by means of a gate．我们的校图书馆同一个公园有门相通。

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Lines of communication

Lines of communication are the routes used to communicate by people or groups who are in conflict; a government might open lines of communication with terrorists if it wished to negotiate with them.

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commune

commune
1.
commune with oneself
to think; ponder
2.
the Commune
1) the revolutionary government of Paris from 1792 to 1794
2) the revolutionary government established in Paris from March 18 to May 28, 1871

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sic transit gloria mundi

sic transit gloria mundi
Nothing on earth is permanent, as in His first three novels were bestsellers and now he can't even find an agent—sic transit gloria mundi. This expression, Latin for “Thus passes the glory of the world,” has been used in English since about 1600, and is familiar enough so that it is sometimes abbreviated to sic transit.