从医生的观点看来约翰患有智力缺陷。
Alertly, excessive drinking seemed to be the major riskfactor for high prevalence rate of mental deficiency(2.2%).酗酒还可能是精神发育不全患病率高(2.2%)的重要原因。
"Would you mind telling me, Doctor," Bob asked... "how you detect a mental deficiency in somebody who appears completely normal?"“医生您是否介意告诉我”鲍勃问道“您是怎样发现一个表现完全正常的人有智力缺陷的呢?”