这种双侧不对称开始出现在青少年发育的第六阶段。

This bilateral asymmetry begins to appear in the juvenile sixth stage of development.

youdao

出发前买一双质量好的结实的鞋子，并且在家的时候就要先试穿适应一段时间。

Buy good quality sturdy footwear at home and be sure to break them in before you leave.

youdao

她同时还有一双轻微变形的前臂，看上去像自己施以手臂纵向伸直了一段很长时间——可能由于祈祷所致。

She also had slightly deformed forearms, apparently something self-inflicted by having the arms extended vertically for long periods of time - perhaps as a result of a praying.

youdao

The end result is you can design now very specific double stranded RNA sequences, that when delivered into cells again will activate this process of natural degradation of an existing messenger RNA.

最终的结果是,你现在能够设计针对性很强的,双链RNA序列,当这段序列被转入细胞后会激活,对已有信使RNA进行降解的过程

耶鲁公开课 - 生物医学工程探索课程节选

Now the nice thing about this is that the degradation mechanisms seem to persist for some period of time, beyond the time at which you deliver the double stranded RNA; whereas, obviously, this mechanism here is only going to exist for as long as the anti-sense sequence is present.

而好消息是降解过程会持续一段时间,比你转入双链RNA的时间要长,但是,这种机制只会在,有反义链的时候发挥作用

耶鲁公开课 - 生物医学工程探索课程节选