Law of succession is a compulsory law of private law, and such double characters lead to its inherent defaults.

继承法是私法中的强行法，继承法的这种双重品格决定了其存在固有的缺陷。

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It is compulsory for all citizens to obey the law.

每位公民都必须遵守法律。

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Following the successful implementation of an extensive national literacy campaign since the 1950s, the government of China also introduced the compulsory education law (1986) which guaranteed all children aged 6 to 15 years the right to receive nine years of free education (i.e. from elementary to junior high school).

UNESCO: Community Learning Centres (CLC) Programme

The defendant's military service was compulsory under Egyptian law.

CNN: Egyptian man near WTC on Sept. 11 charged

And in 2012, Mr Putin signed a law making it compulsory for them to report their spending as well.

BBC: Russia tightens bank account control