not do nothing by halves

Someone who does not do things by halves always puts all their energy and enthusiam into the things they do.

全力以赴，全身心投入

She never did anything by halves.She gave one hundred and one per cent to whatever was important at the time.

她办事从不马虎。只要是重要的事，她总是投入百分之一百零一的精力。