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“早于”造句

而且, 这一目标或许要早于防止污染.
Indeed, this strand may well predate the anti - pollution effort.

在世界上大部分地区, 以重量表示价值的金属作为货币使用早于硬币.
Metal, valued by weight, preceded coins in many parts of the world.

测色学的基本概念早于1853年由格腊斯曼加以阐述.
The basic concepts of colorimetry were expressed by Grassman in 1853.

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