界: 名词1.(相交的地方; 划分的界限) boundary 短语和例子国界 the boundary of a country; national boundary; 山西和陕西以黄河为界。 the boundary between shanxi and shaanxi is the huanghe river.2.(一定的范围) scope; extent 短语和例子外界 e
镇: Ⅰ名词1.(镇守的地方) garrison post 短语和例子军事重镇 strategic post2.(行政区划单位) town 短语和例子小镇 townlet; 镇民 townsfolk; townsman; 乡镇 villages and towns3.(较大的市集) trading centre 短语和例子集镇 market town4.(姓氏) a surnam