日期:
来源:雅诚德英语网
The blast, which has been estimated at the equivalent of around 15 megatons of TNT is widely thought to have been caused by a meteor a few tens of metres across exploding in mid-air.
这次爆炸,其爆炸能量估计相当于约1500万吨的TNT,广泛认为是由跨度为数十米的一颗流星在半空中爆炸所造成的。