master key
A measure of the order in an ecological system
A key designed to open a set of several locks; a passkey. / (figuratively) Any tool or technique that can solve many types of difficulty.
Of or relating to campylobacteria.
ramsons (Allium ursinum)
管理人は、閉館後にどのオフィスにも入れるように、複数の錠を開けるための鍵を引き出しにしまっておいた。
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