If a country or group is self-sufficient, it is able to produce or make everything that it needs.
This enabled the country to become self-sufficient in sugar.
这使得该国在食糖方面变得自给自足了。
Someone who is self-sufficient is able to live happily without anyone else.
Although she had various boyfriends, Madeleine was, and remains, fiercely self-sufficient.
尽管有过各种各样男朋友,马德琳过去和现在一直都非常自立。