self-sufficient
/ˌself səˈfɪʃənt; ˌsɛlfsə`fɪʃənt/ adj
~ (in sth) able to fulfil one's own needs, without help from others 自给自足的
She's handicapped but very self-sufficient. 她身体有缺陷, 但很有自立的能力.
a countryself-sufficient in coal, ie producing all the coal it needs 煤炭自给自足的国家.