tsukaharaBNC²³⁶²¹³⁺¹ 基本例句 冢原¹⁰⁰ Researcher Shinji Tsukahara says the decrease in spines may have been caused by a number of factors, including hormonal changes triggered by the presence of a female. 研究人员冢原慎司说，脊髓组织的减少可能是由多种因素引起的，包括雌性出现引发的荷尔蒙的改变。 www.chinadaily.com.cn