出典:Wiktionary
出典:『Wiktionary』 (2015/10/23 11:55 UTC 版)
back to basics (not comparable)
back to basics (uncountable)
出典:『Wiktionary』 (2009/01/03 07:11 UTC 版)
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to trace anything to its origin or source
get [go] back to (the) grass roots
to be restored to its original form
go back over
withdrawing into the background
bring back into existence
逆にこぐ.
はね返る.
もどって来るさま