"开门"是个多义词，它可以指开门（汉语词语）,开门（武术名词）,开门（钱币学名词）,开门（玄学术语）。
芝麻开门 Open Sesame ; OPEN THE DOORS
开门红 good start ; to begin well to make a good start ; make a good beginning
开门见山 come straight to the point ; straight to the point
打开门 Open The Door ; Open up the door ; Come open up the door
敞开门户 Open-door
双开门 Double door ; Doors ; double door
开门码 [计] opening code
开门机 door opener ; [建] door operator ; door machine
上开门 Top-Loading ; up-sliding door
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