数学不是一项观赏性运动。你必须亲自去做才能理解它。
水产养殖的未来在于平衡生产力与环境管理。
The biennial is not just an exhibition format, but a geopolitical instrument.
工资水平取决于工人所需的最低生活水平。
Some of life, you have to go to the great challenges.