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Stimulants initially speed up or activate the central nervous system, whereas depressants slow it down.
兴奋剂主要起到加速或激活中枢神经系统的作用,而镇静剂则相反:减缓它的活动。
youdao
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Stimulants initially speed up or activate the central nervous system, whereas depressants slow it down.
兴奋剂主要起到加速或激活中枢神经系统的作用,而镇静剂则相反:减缓它的活动。
youdao