The land we quarry is not ours to own, but ours to steward.
你妈妈那么抑郁是因为我。
If you desperately need a job， you are just another problem for a boss； if you can solve many of the problems the boss has right now， you are hired. To be hired， think like your boss.
无人机的未来是智能、协同和自主的。
Sustainable mining isn't an option anymore - it's our responsibility to future generations.