Research data indicate that there is a great deal of poverty in the United States among single-parent families headed by women.
研究数据表明，在美国，由妇女当家的单亲家庭中存在着大量的贫困现象。
The aid agency CARE has also said that up to one-fifth of displaced families around Goma are headed by single mothers.
国际关怀组织也说，在戈马周围的逃难家庭中，有五分之一是靠单身母亲支撑的。
If you're headed west, take a single melatonin capsule just before bed at your destination.
如果你往西飞，只要在目的地睡觉之前吃一颗褪黑色素就够了。
I turned my head from them to an old gray-headed one, who was single on another leaf, and talking to himself.
我转过头来，看见另一片树叶上有一头白发老蜉蝣，它一个正在自言自语。
After analyzing the elevator strategy of the disk scheduling for the single head disk system, this paper explains an elevator scheduling for two-headed disk system.
首先对单头磁盘系统的电梯策略进行简要分析，然后根据双头磁盘系统的特点给出相应的电梯调度算法。
After analyzing the elevator strategy of the disk scheduling for the single head disk system, this paper explains an elevator scheduling for two-headed disk system.
首先对单头磁盘系统的电梯策略进行简要分析，然后根据双头磁盘系统的特点给出相应的电梯调度算法。
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