true breeding不: a block of wood分离: separate; sever; resolve; se ...系: system; series分离系: segregating line; segregative line不分离: non disjunction; nondisjunction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:不分离系,即可在微信中查询翻译