她耳朵里流出水样分泌物。There was a watery discharge from her ear.你眼里的分泌物多吗？Is there much secretion from your eyes ?单侧分泌物可能由局部炎症引起.A unilateral discharge may be due to local inflammation....
这是通过中枢神经系统的调节作用实现的。This works through the mediation of the central nervous system.他正在服用一种危险的药物：这种药物能很快影响到中枢神经系统。He's taking a dangerous drug: it acts very fast on the central nervous system.语言中枢位于左半脑。The major centr...