adj.持久的；经久不衰的
动词sustain的过去式和过去分词.
They failed despite their sustained efforts. 尽管他们不懈地努力, 结果还是失败了。
Fiscal revenue of local governments kept sustained and rapid growth. 地方财政收入持续高速增长。
The national economy has maintained a sustained, rapid and sound development. 国民经济持续快速健康发展。
