terms of sale, etc, etc.

新聞：G公司買X公司的細節未揭露：Terms of the purchase were not disclosed.
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terms (RULES) 條件或條款
plural noun
the conditions which control an agreement, arrangement or activity:
terms of employment 就業條件
Under the terms of their contract, employees must give 3 months' notice if they leave.

(from Cambridge Advanced Learner's Dictionary)
合約(服務)條款：Terms of agreement(service)
Terms of sale 銷售條件

TERMS OF credit 信用期間（此翻譯可能不周延）
credit terms plural noun
the arrangements made for giving credit, especially the amount of money, the period of borrowing, etc.

terms of reference FORMAL
the matters to which a study or report is limited

(from Cambridge Advanced Learner's Dictionary)