Polycross
多系天然杂交, 多向杂交, 多父本杂交
🗣️ 情景例句
Marriage between homesexuals is a controversial topic today.
同性恋者之间的婚姻如今是个具有争议的话题。
When the owl sings,the nightingale will hold her peace.
枭鸟唱歌，夜莺屏息。
Sally was very excited because she had never travelled on a train before.
萨莉非常激动，因为她从未乘过火车。