Polycross
多系天然杂交, 多向杂交, 多父本杂交
🗣️ 情景例句
and do it while I talk to my secretary.
我去和秘书说个话。
There are always two sides to everything.
每件是都有两面性。
It did not take the firefighters long to put out the fire, and they at once started to look for causes of the fire.
消防队员没花多时间就把大火扑灭了，他们马上开始调查火灾发生的原因。