The world needs reliable energy, and coal still plays a critical role in providing it.
世界需要可靠的能源，而煤炭仍然在其中发挥着关键作用。
一个好的科学家就像侦探，总是在细节中寻找线索。
要维护民族独立，必须加强民族团结。
I sent my Soul through the Invisible, Some letter of that After-life to spell: And by and by my Soul return'd to me, And answer'd "I Myself am Heav'n and Hell."
水产养殖的未来在于平衡生产力与环境管理。