He folded the papers and stuck them in his desk drawer.他将文件叠起来，塞进自己的书桌抽屉里。He gave the girl at the desk the message.他把便条递给了桌旁的女孩。On his desk is a mass of books and papers.他的书桌上有大堆的书籍和文件。...
The duplicates are attached to each other at a constricted region called the centromere.对偶体彼此相连于称为着丝粒的缩小的区域.Following the replication of chromosomes, resultant chromatids remain attached at the centromere.随着染色体的复制, 着丝粒始终...
The river inundates the valley each spring.那一条河流每年春天使山谷泛滥.A flood occurs when overflows or inundates land that's normally dry.当水流过量或者淹没正常的土地时,洪水发生.The water - inrush from floor inundates Working face 51101 W in Lian...