noun · leftover bits of material, scraps, or remainders

木工把锯下来的落脚都堆在墙角当柴烧。

verb, particle · to stay for a time, stop over, or find a place to stay

他在这个城市还没找到落脚的地方。

verb · to sink down into soft ground or to step onto a surface

沼泽地很危险，一落脚就可能陷下去。