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to be saved; to be rescued; to survive
to escape harm; to be spared damage
to be helped; to be saved trouble
助かった、本当にありがとう。
I'm saved, thank you so much.
手伝ってもらえると助かります。
It would help if I could get you to assist.
荷物を持ってくれて本当に助かった。
It really helped that you carried the luggage.