Generally, a Chinese translation agency can only achieve a fixed workload for a specific time. Translators not only need time to translate, but also to revise its content and structure. The general cases usually include the following two types:
Ⅰ. For cases without a specific delivery time, Chinese translation agency will usually take full advantage of time and guarantee the version quality. For example, a case of less than 50000 words can be finished in 20 days usually. The remaining ten days can be used to polish it if the customer wants it given back in a month. See more on the relevant article How to Determine the Translation Quality.
Ⅱ. For cases which have strict requirements, Chinese translation agency will pay extra attention to them for customers will pay enough money and require delivering them ASAP. In this case, a specific program team with excellent translators will work together with clear divisions to make the version perfect in structure, sentence pattern and style.
Therefore, translation quality is not the only criteria to determine the company's strength for translation is very complex with the time and ability required.
See more on translation prices in English Translation Recommended Price – Chinese translation agency