demarcation line英 [ˌdiːmɑːˈkeɪʃn laɪn]美 [ˌdiːmɑːrˈkeɪʃn laɪn]网络 界线; 界限; 分界线; 灰白色界线英英释义nounthe boundary of a specific areaSynonym:limitdemarcation双语例句