His ankles were tied to the legs of the chair.他的脚脖子被绑在椅腿上。Do your ankles swell at night?你夜里脚踝肿吗？She was slender, with delicate wrists and ankles.她身量苗条，手腕和脚踝曲线玲珑。...
This substance has now been cloned by molecular biologists.该物质现在已被分子生物学家克隆。Fourteen ESTs were cloned by RT - PCR and SSH analysis of the Rht - Blc isogenic lines.通过RT -PCR 和对Rht近等基因系的抑制缩减杂交(SSH),我们还克隆了14个有明显开放读码框的EST序列.E...