Customers could inspect vendor operations to assure the accuracy of vendors' self assessments but no formal regulatory body existed.

顾客可以检查销售商经营活动，以保证销售商自我评价的准确性，但没有正式的管理机构。

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Formal words are used. The language accuracy is required. Active voice, present tense, direct expression and conditional clauses are more frequently used.

用词多数比较正式，用语力求准确，多用主动语态、现在时态、直接表达方式和条件句等。

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