Catastrophic cancellation
[計] 巨量消失
?? 詞語組成解析
a. 悲慘的, 災難的
cancellation
[k?ns?'lei??n]
n. 取消;<數(shù)>（相）約;被取消的事物;作廢;
??? 情景例句
I recognize you ...
我認得你……
Hide nothing from thy physician.
切莫諱疾忌醫(yī)。
It is fairly clear that sleeping period must have some function,
很清楚，睡眠必然具有某種作用。