"And that role could be threatened by shortages in fuel or spiraling fuel costs."
VOA: standard.2010.08.11
That meant that people growing corn were less-- less vulnerable to having things wipe out entire crops because there were different types of crops planted around the world, so the world corn supply would never be threatened by anything.
也就是说只要人们种植玉米,整个粮食体系就不可能那么轻易被摧毁,由于世界各地种植着不同品种的玉米,世界玉米供应不会受到任何影响
Africa,with already severe weather conditions and a poor population largely dependent on subsistence farming, is considered to be the continent most threatened by climate change.
VOA: standard.2009.11.04
adaptations,coastal protections Among a host of necessary need to be built, crops threatened by drought need to be modified, health care needs to be stepped up, and new clean energy solutions need to put in place.
VOA: standard.2009.12.11
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