安全不仅是关键绩效指标,更是矿业一切工作的基础。
Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
The way management treats the associates is exactly how the associates will then treat the customers.
一本好的绘本会给读者的想象力留下成长的空间。
The discovery of 51 Pegasi b was a turning point in astronomy, proving that planets could exist around sun-like stars.