国门 guómén capital gate Definitions Defs Origin Strokes Stroke Words Sentences Sents Showing: national border All meanings 2 guómén 2 capital gate 1national border 1 1 sentence for 国门 (guómén — national border) 海关人员坚守在保卫国门的第一线。 hǎiguān rényuán jiānshǒu zài bǎowèi guómén de dìyīxiàn. Customs officers stand at the front line of defending the nation's borders. Source: Dong Chinese Dictionary