In fact, I think we should double our efforts.

Instead he doubled his efforts back at the temple.

They doubled their efforts and were able to produce better albums.

Landi is going to double his efforts to get through a signal to Earth.

She doubled her efforts to get back at both of you.

"I have to double my efforts to teach about Islam."

'The City needs to double its efforts,' he states bleakly.

I believe we have to double our efforts in reaching out to governments.

I doubled my efforts to be with the students.

That would be all they'd need to double their efforts to catch you.