expression
in accordance with; according to; as X, then Y
Used to express that one thing changes or happens in proportion to or in line with another. Often follows a noun or a verb in dictionary form. The pattern is 'X に従って Y', meaning 'as X happens/changes, Y happens/changes accordingly'.
年を取るに従って、体力が落ちる。
As we age, our physical strength declines.
説明書に従って、組み立ててください。
Please assemble it according to the instructions.