As regarded its origin there were various explanations, all of which must necessarily have been conjectural.
至于其來源,則有著種種解釋, 當然都是些臆測.
英漢文學 - 紅字
Theories about the extinction of dinosaurs are still highly conjectural.
關于恐龍滅絕的理論仍然是帶有很強的猜測性的.
互聯(lián)網(wǎng)
"theories about the extinction of dinosaurs are still highly conjectural"
"the supposed reason for his absence"
"suppositious reconstructions of dead languages"
"supposititious hypotheses"
