蛔虫

Scientists at Oregon university argue in Nature magazine that their research with roundworms – which can self-fertilise or reproduce sexually – shows selfing populations are more susceptible to harmful genetic mutations and slow to adapt to swiftly changing environmental conditions.

俄勒冈大学的科学家在《自然》杂志上撰文称，在对既可以自体受精、也能够有性繁殖的蛔虫进行研究后发现，自体受精的后代更容易受到有害基因突变的影响，对迅速变化的环境条件的适应速度也比较慢。

Most flatworms and roundworms are permanent parasites and live their entire adult lives in their hosts.

大部分扁形虫及蛔虫却是长久性寄生虫，他们的成虫期全部在宿主体内渡过。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。