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backward and forward
01
隅々まで, 全ての面において
in a manner that includes all necessary parts, elements, or aspects of something
IdiomWhat is the origin of the idiom "backward and forward" and when to use it?
The idiom "backward and forward" is an extension of the idiom "know something back to front." In this case, it emphasizes a more comprehensive understanding by suggesting that one knows every aspect of the subject so well that they can navigate it as easily backward as they can forward. This expression is used to describe an in-depth and complete understanding of a subject, task, or situation. It implies that the person is so familiar with it that they can handle it effortlessly, both forwards and backwards. It can be applied in various contexts, such as work, hobbies, or expertise in a particular area.
Example
After years of studying the language, she understands French literature backward and forward.
He is familiar with the financial market backwards and forwards, so he can predict trends accurately.
The technician knows the circuitry of this computer backward and forward, making repairs a breeze.
02
前後に, 往復して
moving from one place to another and back again
