primary formation原始: original; firsthand组合: make up; compose; constitute原始组分: original constituent原始组织: original structure; primary structure; primary tissue; prior structure原始组织破坏: primary breakdown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:原始组合,即可在微信中查询翻译