Don't watch the clock; do what it does. Keep going.

凡是教师缺乏爱的地方，无论品格还是智慧都不能充分地或自由地发展。

Innovation is the market introduction of a technical or organizational novelty, not just its invention.

煤炭是我国的主体能源，在相当长时期内仍将是我国能源安全的基石。