及物动词定…的界线，区分

1. 划分界线：varices 血管曲张 | demarcate 划分界线 | eudialyte 异性石

2. 定界线：demantoid 翠榴石 | demarcate 定界线 | demarcation 划分

3. 划定界线：demandi 要求 demand | demarki 划定界线 demarcate | demo 群众 the masses

4. 标定：demantoid 翠榴石 | demarcate 标定 | demarcatedemarkate 限定

1. 划定…的界线(或界限)
If you demarcate something, you establish its boundaries or limits.

e.g. A special UN commission was formed to demarcate the border.
联合国成立了一个特别委员会来划定边界。

verb

1. set, mark, or draw the boundaries of something

Synonym: delimitdelimitate

2. separate clearly, as if by boundaries