With bike sharing you can get a city-changing system for less than $10 million.
相形之下,只需不足1,000万美元,就能建成一套可以改变整座城市的自行车分享系统。
"You think you've got your own computer all to yourself and you can't tell the difference that you're working on something other than a computer and sharing this other resource and doing it at a much lower cost than having your own PC."
VOA: special.2010.04.12
That is a maximum If you are sharing your time and energy during this period on Tuesday afternoons, or the arch-field don't work so think carefully about that.
让大家充分发挥自己的能力,如果每周二下午这段时间,你都有时间,精力也很充沛,就可以来上这门课,不过这样你就没时间参加实践活动了,所以请仔细考虑吧。
The best you can do sharing among yourselves is sharing your own risk, the risk of your own community; but your own community goes up and down and you're not sharing widely enough.
你们所能做的仅仅是在成员之间,分摊自己的风险,即你们这个小团体的风险;,但由于共有背景下的正相关性,你们的风险无法摊薄。
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