Polycross
多系天然杂交, 多向杂交, 多父本杂交
🗣️ 情景例句
Tell me what you think, yay or nay?
告诉我你究竟是怎样想的，是还是不是？
If you hadn't slipped and fallen,you wouldn't have broken your leg.
如果你没滑倒,你就不会断腿了。
A wet road is usually slippery.
潮湿的路往往是滑的。