外加的用英语怎么说？

外加的

• adscititious，[法] extra

例句

• Online security is being built in to the system, not tagged on. 联机安全措施正被內置在系统中, 不是外加的.
• The cell lost its autotrophic character and became dependent on added chemical energy sources. 细胞丧失了自养的特性,变成依赖于外加的化学能源生活.