that is to say

phr

• ① 那就是说,即是,换言之(=in other words)
  • Next Friday, that is to say, the 18th of June下星期五,也就是六月十八日
  • He is a government official, that is to say, a civil servant.他是一名政府官员,也就是公务员。

• ② 至少(=or at least)
  • He has never been in business, that is to say, no one knows he has.他未曾经商,至少无人知道这桩事。

• ③ 更正确[明确]地说