This is a complex of small catalytic RNAs and many proteins;its job is to snip intron RNA out of messenger RNA precursors efficiently.是什么意思_This is a complex of small catalytic RNAs and many proteins;its job is to snip intron RNA out of messenger RNA precursors efficiently.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句