For the first time in many years, this country is earning its keep.这个国家多年来第一次能够自给了。These people have now become almost self-sufficient in grain crops.这些人的粮食现在已经差不多能自给了。Nations which are not self-sufficient in energy will face an insecure future.能源不能自给的国家，其未来是没有保障的。