可持续性不是一个流行词,而是矿业前进的唯一道路。
I have to say to myself that some birds aren't very close. Their feathers are just too bright. When they fly away, you know it's a sin to lock them up, and you'll be inspired by them. Still, the place you live in is that much more drab and empty that they're gone. I think I really miss my friends.
释义:从五个方面分析形势:政治、天时、地利、将领、法制。