“全影--本影”概念、定义、翻译-科学时代

单词	全影--本影
释义	工程与技术词汇手册 umbra 本影，全影
随便看	prepaid prepaid accounts prepaid annuity prepaid application prepaid asset prepaid assets prepaid assets prepaid coupon prepaid discount charge prepaid expense prepaid expense prepaid expense prepaid expenses prepaid expenses prepaid freight prepaid group legal plan prepaid income tax prepaid income tax prepaid insurance prepaid interest prepaid interest prepaid payroll prepaid pension cost prepaid (ppd.) prepaid premium

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。

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