encroach
v[I, Ipr]
~ (on/upon sth) (fml 文) go beyond what is right or natural or desirable; intrude 超出正当的、 自然的或适当的程度; 侵入; 侵害
encroach on sb´s property 侵占某人的财产
encroach on the liberty of the individual 侵犯个人自由
The sea is gradually encroaching (on the land), ie washing the land away. 海水渐渐浸蚀了陆地.