Let me use Darfur as an example. In south Darfur right now, they are only cultivating about a third of the arable land that they could be cultivating.
VOA: standard.2009.10.14
Now let me just say in a technical way: if you decide to volunteer to nominate a novel, you'll get no extra credit.
从实际角度讲:,如果你自愿推荐一部小说,你不会得到额外的学分。
Now as I did last time, let me put in two axes to make the picture a little easier to draw.
和我上次做的一样,画两个纵轴来帮助我们作图
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