"What is necessary in this case is a collective effort, not only by the researchers and the people on the ground, but also the donor community, because controlling those two diseases can go a long way in improving people's food security and livelihoods in Sub-Saharan Africa."

VOA: special.2009.09.21

And the reason is simply because the energy that Z we gain in terms of moving up in z, 5 so from going to z equals 4 to z equals 5, -- is actually outweighed by the energy it takes to go into this new shell, to go into this new sub shell.

原因很简单,就是因为我们通过提升，所得到的能量--从，Z，等于，4，到，Z，等于，事实上比填充到这个新的壳层,新的亚壳层，所消耗的能量更多。

麻省理工公开课 - 化学原理课程节选

We've got some chords set out and we're going to-- we've got some chords set out here and we're in the key of C at this point, and we're going to hear Beethoven go to a tonic chord, then a sub-dominant chord, then a tonic chord, then a dominant chord and so on.

我们看到有一些和弦-,而我们现在在C调的位置上，然后听贝多芬的主音和弦，然后是次属音和弦，然后是主音和弦，接着是属音和弦，如此往复。

耶鲁公开课 - 聆听音乐课程节选

Kavanagh's effort from play edged Donegal ahead with 10 minutes to go and sub David Walsh, who made a great impact after his 48th-minute introduction, extended the northerners' lead.

BBC: Sean Armstrong and Frank McGlynn

South Africa will next tour Australia for a three-Test series starting in November, while England will go to the sub-continent to take on India again.

CNN: South Africa topple England from No. 1 Test ranking

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