He added that the study focused on historical data in order to strengthen confidence in the existing projections.

BBC: Climate shifts 'hit global wheat yields'

There is the study and practice of the craft in order to strengthen the muscular structure of the body.

NPR: An Athlete of God

Our objective was to strengthen the material already being taught, expand into new areas of study and convey to students the connection between what they were learning and the real world.

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