that is to say片语

片语

1. 1

   也就是说、换句话说、即

   The office is closed on public holidays, that is to say, about ten days a year.

   办公室在公共假日休息，也就是说一年大约有十天。

2. 2

   更确切地说、严格来说用于补充修正

   He agreed to help, that is to say, he agreed to think about it.

   他答应帮忙，更确切地说，他只是答应考虑一下。