a burden or impediment 负担,累赘;障碍物 ■(Law)a mortgage or other charge on property or assets (律)(附带在财产或资产上的)抵押权(或债权) ■(archaic)a person, especially a child, who is dependent on someone else for support (古)受赡养者(尤指小孩)
语源
Middle English (denoting an encumbered state; formerly also as incumbrance): from Old French encombrance, from encombrer 'block up' (see encumber)