According to the demands of crop and livestock for sunlight illumination condition, 4 zones, namely, dark light zone, weak light zone, moderate light zone and strong light zone were divided.

探索了汽车在可见度极差的条件下行驶，由于光照暗区带来的一系列不安全因素的解决方法。

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When ECB President Mario Draghi was asked if the central bank would increase its sovereign bond-buying in light of weak auctions across the euro zone, he said no.

FORBES: Stocks Battered As Words From EU Meetings Alarm Investors