She hesitated, then put her hand on Grace's arm.她犹豫了一下，然后把手放到格雷斯的胳膊上。I hesitated, not wanting to tell tales about my colleague.我犹豫了，不想说同事的坏话。They have not hesitated in the past to liquidate their rivals.过去他们曾毫不犹豫地铲除...
这种化学物质湮没了突触, 覆盖了5—羟色胺的受体.The chemical floods the synapse, overwhelming the serotonin receptors.毒品引起的狂迷还能阻止5—羟色胺的再吸收, 进一步增加了突触内5—羟色胺的浓度.Ecstasy also keeps serotonin from being reabsorbed, further increasing the concentrat...
Barcelona is the locus of Spanish industry.巴塞罗那是西班牙工业中心。The dark - hair genes are epistatic to the red hair locus.黑发基因对于红发基因位点来说是上位遗传的.Altogether, half the offspring will be homozygous at that particular locus.加在一起, 将有半数...