To be understood, as to understand.

被理解才能理解人。

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To understand what is meant by the "commitment to comply," the standard has to be read as a whole and the relationship between the relevant provisions of the standard understood.

要弄清楚“承诺遵守”的意思需要已经通篇阅读标准，并清楚标准中的相关规定之间的关联性。

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Given that about 70% of the sex workers in Amsterdam are foreigners, the new rules require operators to test the language competence of the applicants to ensure they can understand and be understood during job conditions discussions as well as about their rights and obligations.

FORBES: Reforming Prostitution in Amsterdam Includes a Business Plan and Business Hours