The promise of the concessional loans further China's investment in the continent, aimed at improving such infrastructure as roads and energy production as well as developing agriculture and undertaking health and education initiatives.

VOA: standard.2009.11.08

Well, then you could imagine a cycle here where activation of the receptor is leading to production of more ligand, is leading to activation of the receptor and production of a ligand.

那么,你就能画出一个循环图,激活受体能导致,更多配体的生成,这些配体又会刺激受体生成更多配体

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as well as the creativity part of the production,

还有制作的创新部分，

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