I looked, and there he was, riding a horse, with a double barreled shotgun on his shoulder.我看了看，发现他在那儿，骑着马，肩上扛着一把双筒猎枪。The truck barreled along at 70 mph on a potholed road.大卡车以每小时70英里的速度在坑洼不平的道路上继续前进.The cement is barrel...
a truthful answer如实的答复He was not always truthful.他并非总是说真话。We've all learnt to be fairly truthful about our personal lives...我们都学会了要非常坦诚地对待自己的个人生活。The trader was truthful and without deceit.这位商人很可信,童叟无欺.Most religion...
胚囊,普通具有8个遗传上相同的单倍体核.Embryo has most commonly eitht genetically identical haploid nuclei.植入之后不久,胚囊的壁, 即滋养细胞含有两层细胞.Shortly after implantation the blastocyst wall, the trophoblast, consists of two layers of cells.存在于胚囊和胎座中的...