在采矿业中,效率和环境保护必须齐头并进。
如果你愿意,我们可以回到那个山洞。
"The power of film is to open our eyes to the unseen, to make us feel the unfelt."
You cannot swim for new horizons until you have courage to lose sight of the shore.
 One foul sentence does more hurt than many foul examples. For these do but corrupt the stream;the other corrupt the fountain.