The former two factors root in the system of DSU and are the inherent consequences of thedefective DSU. The latter is a non-systematic factor with few relations with DSB per se.是什么意思_The former two factors root in the system of DSU and are the inherent consequences of thedefective DSU. The latter is a non-systematic factor with few relations with DSB per se.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句