that

that is to say发音： [ðæt ɪz tu seɪ]

that is to say释义：就是;即;换言之

例句：

They are very light, that is to say, low mass.

翻译为：它们非常轻，换言之，质量很低。

这里的that is to say表示换言之。

That would mean voting no, that is to say, using the veto.

翻译为：那就意味着投反对票，也就是说，行使否决权。

这里的that is to say表示也就是说。

同近义词：

In other words 换言之，换句话说