据推测, 我该说她大约50岁.At a guess, I should say she is about fifty.这种情况在临床上尚未证实,据推测很少见到.The condition is not recognized clinically and is presumed to be rare.据推测,脊髓灰质炎病毒是在融合过程中渗入到耐受细胞内的.Presumably poliovirus was incorporated int...