Objects have no inherent constraints, so explicit coding is required to implement the data validation.

对象没有固有的约束，因此要实现数据验证，必须进行显式编码。

youdao

However, the borders own defects, lack of national strategic considerations and inherent barriers to security, are still the main constraints for the border to play a fulcrum role.

但是，边境的自身缺陷、国家战略的考量缺失和安全的固有障碍仍是边境发挥支点性作用的主要制约。

youdao

However, the borders own defects, lack of national strategic considerations and inherent barriers to security, are still the main constraints for the border to play a fulcrum role.

但是，边境的自身缺陷、国家战略的考量缺失和安全的固有障碍仍是边境发挥支点性作用的主要制约。

youdao