border line国境线: rangeline; boundary line边界线: boundary line边缘: border; edge; fringe; margin ...轮廓线: sweep; outline; borderline; ...非直线边界: non-rectilinear border下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:国境线边界线边缘轮廓线,即可在微信中查询翻译