Objective To evaluate the environmental estrogenic activity of the pesticide fenitrothion and study the possible mechanism.目的检测杀螟硫磷的环境雌激素活性,并探讨其作用机制....
I answered the phone and this voice went, "Hello? Is that Alison?"我拿起电话，就听到这个声音：“喂？是艾利森吗？”She writes under the nom de plume of Alison Cooper.她用笔名艾莉森·库珀写作。I ran up the stairs and saw Alison lying at the top.我跑上楼梯，见艾莉森躺在那里...
His meager allotment of gas had to be saved for emergencies.他分到的那一点点煤气必须留着急用。He could not support his family on his meager salary.他靠微薄的工资无法养家.Their food supply is meager.他们的食品供给少得可怜。...
Neither was the form of the third skull entirely erectus - like.形态上,第三个头骨也不完全像直立人.Homo erectus hunt with wooden tools?直立人是用木器打猎 吗 ?We gradually evolved from homo erectus.我们就是从直立人渐渐进化而成的....
She became involved with political causes after the Chernobyl nuclear disaster...在切尔诺贝利核泄漏灾难发生以后,她开始投身政界。...the Chernobyl disaster, which irradiated large parts of Europe.使欧洲大片地区受到严重核辐射的切尔诺贝利灾难Both Three Mile Island and ...
他们全都光着脚走过潮湿的沙地来到水边。They all walked barefoot across the damp sand to the water's edge.他们的喧闹声在凝滞而潮湿的空气中显得更吵了。Their noises were magnified in the still, wet air.有潮湿的木料和机油的气味。There was a smell of damp wood and machine oi...
Store grains and cereals in a cool, dry place.将粮食和谷物储存在阴凉干燥的地方。Atoms within the fluid interact with the minerals that form the grains.液体中的原子与形成颗粒的矿物质相互作用。She paused as she pounded the maize grains.她捣玉米粒时停了一下。...