The time one is alive; during one's lifetime.
一生之中最后的年月，即余年。
清·李汝珍《镜花缘》第68回俾臣得保蚁命，此后有生之年，莫非主上所赐，惟求格外垂怜。”
I hope to visit Japan within my lifetime.
Learn the next connected idiom: 有生之年 (yǒu shēng zhī nián) → 年事已高 (nián shì yǐ gāo)
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