也就是说

也就是说

"In other words."

Linking explanation and conclusion, clarifying necessity of early departure.

我们需要在九点前到达，也就是说，我们得早点出门。

We need to arrive by 9 o'clock, in other words, we have to leave earlier.

Providing further clarification based on a statement, emphasizing absence and its implication on attendance.

他不在那里，也就是说，这次会议他不会参加。

He is not there, in other words, he won't attend this meeting.

Explaining a consequence from a characteristic, asserting difficulty based on complexity.

这个计划过于复杂，也就是说，很难在短时间内完成。

This plan is too complicated, in other words, it's difficult to complete it in a short time.