心靈的能量是生命的本質(zhì)。
The human mind is a complex and fascinating subject, and understanding it requires both scientific rigor and a touch of creativity.
北海幾十年來一直是能源的強大來源，它在英國的能源安全中仍然發(fā)揮著至關(guān)重要的作用。
The history of mathematics is a history of human thought and progress.