He had retained a keen interest in the progress of the work.他对那项工作的进展一直很关心。The receivers are keen to sell the stores as one lot.破产事务官想要将这些店铺打包整体出售。Brand's keen ear caught the trace of an accent.布兰德敏锐的耳朵听出了口音。...
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...