Polytypism
多型性, 多型现象
🗣️ 情景例句
Mr. Harrison, how nice to meet you again.
哈里森先生，真高兴再见到你。
He devoted his life to promoting world peace.
他一生致力于促进世界和平。
During a radio programme, a company of biscuit manufacturers once asked listeners to bake biscuits and send them to their factory.
有一次，在电台播放的节目里，一个生产饼干的公司请听众烘制饼干送到他们的工厂去。