鉄則
iron law; principle set in stone
seven things [small or without a counter category]
a person's appearance (as of body, or style, or face, etc.) / the state or situation of a thing / the general trend, tenor, or feel of a thing / one's social station, status, or quality
a periscope
The iron law for maintaining health is a balanced diet and moderate exercise.
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DiQt(ディクト)
無料
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