邊界
boundary（指界線）;border（指地區(qū)）;frontier
國家～（國界）national boundary/已定～defined (or demarcated)boundary/未定～undefined (or undemarcated)boundary/幾何學(xué)～geometrical boundary/天文學(xué)～ astronomical boundary/人為～artificial boundary/自然～natural boundary/～的勘察boundary survey/～的確定determination of the boundary/～的劃定delimitation of the boundary/～的標(biāo)定demarcation of the boundary/～的標(biāo)繪delineation of the boundary/～的走向alignment of the boundary line /～標(biāo)志boundary sign (or mark,marker)/～測(cè)繪boundary survey and drawing/～海灣boundary bay/～海峽boundary strait /～聯(lián)合檢查joint inspection of the boundary /～聯(lián)合委員會(huì)Joint Boundary Inspection Committee/～內(nèi)陸海boundary land-locked sea /～實(shí)際控制線line of actual control on the border /～談判boundary negotiations/～條約boundary treaty/～委員會(huì)boundary commission/～問題boundary question (or issue)/～協(xié)定boundary agreement/～議定書boundary protocol/～爭(zhēng)端boundary dispute