法律实证主义强调法律与道德的分离。
The core competitiveness of the aquaculture industry lies in technological innovation and sustainable development.
数学家的工作永无止境；总有更多的问题需要解决。
一个好故事不能被设计出来；它必须被提炼出来。
The essence of mathematics is not to make simple things complicated, but to make complicated things simple.
Every piece of plastic we produce should have a clear path to reuse or recycling.
