The oc-17 protein then dropped off when the crystal nucleus was large enough to grow on its own freeing up the protein to start the process again .
在晶核足够大，可以自行生长之后，蛋白质oc-17就逐渐消退了，之后便可以投身于下一次的转化过程。
We expect real gdp to grow on average by 2.75 per cent each year over the next four years .
我们预计，未来4年，实际gdp将每年平均增长2.75%。
Crops cannot grow on infertile ground .
在贫瘠的土地上种不出农作物。
Fermented foods have been important all over the world mainly because it is a way to keep foods longer by controlling what microbes grow on them and so delaying or preventing toxic spoilage .