protoblast原: primary; original; former分裂: split up; break up; rend球: sphere; globe分裂球,卵裂球: blastomere分裂球: blastomere; segmentation sphere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:原分裂球,即可在微信中查询翻译