后代英文是later generations。
descendants n.后代；弟子；后裔；（descendant的复数）。
posterity n.后代；后世；子孙；后裔。
offspring n.子女；结果；幼仔；产物。
progeny n.后代；后裔。
双语例句：
1、保护环境将裨益子孙后代。
Environmental protection will benefit future generations.
2、动物有繁衍后代的能力。
Animals have the power to procreate their species.
3、植树造林，造福后代。
Plant trees everywhere in the interest of future generations.
4、后代是源于同系繁殖的杂交种。
Progeny were derived from selfed crosses.
5、对后代的安全漠不关心的公司。
Companies with scant regard for the safety of future generations.
扬帆飘舟
