My other grandmother, though, was a dark hole in my memory.
我的奶奶，相反的，几乎是我记忆中的一个黑洞。
2
Then those images dropped down the collective memoryhole, too.
然后，那些图像也掉进了人们集体记忆里的黑洞。
3
If this is the case, this defect is likely to cause a memory corruption or program crash, although some cases might cause an exploitable security hole.