Phase four means that a virus has gained the ability to cause community-level outbreaks.
VOA: special.2009.05.06
Because you'll have an appropriate level of confidence and competence in your ability to do computational problem solving.
因为你们在自己的能力范围内,拥有应对解决计算问题的,正当水平的自信心和竞争力。
Their reading ability is at level one or two.
都存在文化素养问题,他们的读写能力很低。
"I define success as the ability to empower and transfer responsibility to Afghans as rapidly as possible, and achieve a sufficient level of stability to ensure that we can leave behind an Afghanistan that is not controlled by al-Qaida or the Taliban,".
VOA: standard.2009.10.26
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