He installed rain gutters and downspouts.他安装了雨水檐沟和排水管。Gutters lead the water into the ditch.排水沟把水排到这条水沟里.The gutters either side of the paved high road were gurgling and even flooding.铺砌的大路两旁的排水沟在汩汩作响，甚至漫出水来。...
The maple leaves had fallen and they lined the gutters of the asphalted streets.枫树已经落叶,铺满了柏油路两旁的阴沟.He installed rain gutters and downspouts.他安装了雨水檐沟和排水管。The gutters either side of the paved high road were gurgling and ev...
Demonstrable antibodies are evoked in carriers after a few weeks of infection.在感染几星期之后,从带菌的物体中能证实存在抗体.Antibodies were part of the r - globulin fraction of serum.抗体是血清r - 球蛋白的一部分.Objective : To investigate the feature of ...
She crushed the bootee back into the basket and squeezed past the guardhouse.她把毛线靴塞进筐子,从安检所挤了出去.Light a sock or bootee is washed - up.光穿袜子或者毛线鞋是不行了....