- 名词: conjecture;
As regarded its origin there were various explanations, all of which must necessarily have been conjectural.
英汉文学 - 红字
Theories about the extinction of dinosaurs are still highly conjectural.
1. based primarily on surmise rather than adequate evidence;
"theories about the extinction of dinosaurs are still highly conjectural"
"the supposed reason for his absence"
"suppositious reconstructions of dead languages"