Getting enough to eat and enjoying the safety and comfort of living fully on the grid is certainly a good thing—but it does carry an environmental price.
人们获得足够的食物，充分享受生活在城市中的安全和舒适当然是一件好事——但这确实会带来环境代价。
While it is easy for nervous speakers to focus only on getting through the presentation, using the audience's good will helps much in making a speech better.
然而紧张的演讲者很容易只会把注意力集中在演示上，利用观众的善意有助于把演讲做得更好。
The REXML homepage contains a very good tutorial, which is not entirely complete, but it does a good job of getting users up to speed.
REXML主页包含一个非常好的教程，它并不完整，但它可以很好地帮助您尽快熟悉。
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