The US Department of Agriculture data shows that global corn inventories are at a 37-year low as producers are unable to grow enough grain to keep pace with consumption.

美国农业部数据显示，由于生产商无法种植足够的谷物以紧跟消耗步伐，全球谷物库存量目前处于37年来最低水平。

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The chemotherapy left her with a hole in her heart and, as her body has grown, her heart has been unable to keep pace.

多年的化疗在她的心脏上留下了一个洞；随着Hannah长大，她的心律一直不稳定。

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Yamauchi, Britain's leading woman runner, was unable to keep up with the pace but was happy with her time of 70:39 as she builds up towards a tilt at November's New York Marathon.

BBC: Ethiopian Haile Gebrselassie wins the Great North Run