至少可以说，我们很惊讶。

We were surprised, ___to ___say ___the ___least.

说得客气点，这份说明让人困惑。

The instructions were confusing, ___to ___say ___the ___least.

这次会议至少可以说是毫无组织。

The meeting was disorganised, ___to ___say ___the ___least.