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as (much) as possible; as (much) as one can; wherever practicable; if possible
成るたけ早く返事をいただきたい。
I would like a reply as soon as possible.
成るたけ費用を抑えて旅行したい。
I want to travel while keeping costs down as much as possible.
成るたけ残業しないようにしている。
I try not to work overtime as much as possible.