verb · to supplement or fill in missing parts to make something complete

新搜集到的史料充填了这篇论文的论据。

verb · the medical procedure of filling a tooth cavity or the filling material itself

这颗牙齿的龋洞很大，需要进行充填治疗。

verb · to fill a gap, hole, area, or blank; to pad out or pack a space

工人们正在用碎石充填地基的缝隙。