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
燃烧: (物质剧烈氧化而发光、发热; 烧) burn; kindle; flame; set on fire; [化学] combustion; inflammation; ignition 短语和例子怒火燃烧 burning with rage; 革命的烈火在燃烧。 the flames of revolution are raging. 干柴容易燃烧。 dry wood bur