言之有据的英文

• speak on good grounds; arguments bottomed on facts

• 言之有理:    it stands to reason.; hold water; said with solid judgment; sensibly said; sound reasonable; speak in a rational and convincing way; speak with reason -- a logical statement; talk [speak] sense
• 言之有物:    having substance in speech
• 言之有信:    honor one's own words
• 讲得通,言之有理:    make sense; makese e
• 有意义，言之有理:    make sense

例句与用法

1. The final step of diplomatic research is to write a report which should be short , terse and pithy and well - grounded and it lays stress on logical thinking1 using concise language to express rich content clearly , and fast writing
   外交调研的最后一环是撰写报告，成文应讲究短小精悍、逻辑思维、言之有据、表达清晰、鲜明突出、用词精炼、行文迅速。

其他语言

言之有据的日语：〈成〉言うことに根拠がある. 说话要言之有据,不能主观武断 wǔduàn ／発言するには根拠がなくてはならず,主観的独断は避けなければならない.
言之有据的韩语：【성어】 말에 근거가 있다.
言之有据什么意思：yánzhī-yǒujù [be quite justifiable;speak on good grounds] 说话和写文章有充分的证据或事实根据