Although little is known about how hypnosis works, it has been made use of in medical treatment.
Although little is known about how hypnosis works, it has been made use of in medical treatment.
虽然人们对催眠术知之甚少，但是它已经应用于临床治疗。
Although little is known about how hypnosis works, it has been made use of in medical treatment.
虽然人们对催眠术知之甚少，但是它已经应用于临床治疗。