Such a quantity of material would have blocked the sunlight completely from reaching the surface, plunging Earth into a period of cold and darkness that lasted at least several months.
如此大量的物质会完全阻挡阳光到达地表，使地球陷入至少持续数月的寒冷和黑暗之中。
2
If you supply a time, adding a new value with this key is blocked for the specified period.
如果您提供一个时间，那么添加具有此键的一个新值就会被阻塞这个特定的时期。
3
There was also controversy late in the first period when Paul Scholes, who had already been booked, cynically blocked off the run of Wilson Palacios by the right touchline.