英语语法分析

Even caffeine, which is generally known only for its stimulatory effects, displays this property, depressing mouse locomotion at very low concentrations and stimulating it at higher ones.

就连人们通常觉得有刺激作用的咖啡因，也表现出了这种特性，它在浓度极低的情况下会抑制老鼠的运动，而在浓度较高的情况下则会刺激老鼠。

Reduced glutathione has no stimulatory effect on the enzyme activity.

谷胱甘肽对酶活力无激活作用。

It is their medium and utilization of complex verbiage creates essential stimulatory excitation for them.

这是他们的传播媒介，同时他们也利用复杂晦涩的词句给自己创造必要的刺激。