They found a spike coinciding with a drop in mammoth numbers some 15000 years ago .
他们发现在15000年前，猛犸象的数量恰巧出现一个高峰和低谷。
Later in the year , a similar effort will be conducted in florida coinciding with the production and harvesting season there .
在今年稍后时间，类似的努力将在佛罗里达州恰逢进行生产和收获季节出现。
The latter were normally public spectacles too , coinciding with feasting and festivals .
后者通常也在公众面前表演，常常跟节日和庆典活动同时举行。
Coinciding with this debate are vocal concerns about the country 's underlying fiscal position which some have suggested as a reason to delay healthcare reform .
恰在此时，美国的基本财政状况也引起了舆论的关注有人将此作为推迟医疗改革的一个理由。
But what really worries ba , and other business-oriented airlines , is that the cyclical downturn may be coinciding with a structural decline in business travel because of advances in information technology .
