to lend one a hand―lend one a helping hand―lend one assistance
to shade one's eyes with a hand
(自分の手なら) to let go one's hold―release one's hold―loose one's hold―(人の手なら)―let go of one's hand―leave hold of one's hand―disengage one's hand―free one's hand
力を借りる、手を借りる
to exhaust one's means―try every means
Put out your hand.
手をもむ
(食物になら)to touch food―(仕事になら)―put one's hand to a task―(女になら)―have a connection with a woman
to link hands with each other
to try every means in one's power―exhaust all means―leave no means untried―leave no stones unturned―move heaven and earth