preimplantational胚胎: embryo; embryon植入: implantation; embedding前: front的: 4次方是 The fourth power of 2 i ...胚胎植入前面: pre-implantation下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:胚胎植入前的,即可在微信中查询翻译