Many entry-level jobs were filled by school leavers.很多初级水平工作都由中学毕业生来做。the problem of rising unemployment among school-leavers毕业生失业人数不断增长的问题For example, they complain that many school - leavers cannot speak clearly.比如, 他们...
Nothing happens until the excitatory stimulus exceeds a certain'threshold'value.兴奋性刺激超过某一临界值以前毫无反应.Glutamate ( Glu ) is the main excitatory neurotransmitter in the central nervous system ( CNS ) .谷氨酸 ( Glu ) 是 ...