短語詞組短語Bt hybrid cotton Bt 襍交棉bt -cotton 棉花抗蟲transgenic bt hybrid cotton 抗蟲襍交棉Bt transgenic cotton Bt 棉CpTI -Bt transgenic cotton 轉BT -seed cotton 基因改造棉花transgenic bt cotton bt 棉;Bt棉花bt cotton fields bt 棉田transgenic bt cotton fields bt 棉田 返回 bt cotton