Polyphyleticism
n. [生]多源性
🗣️ 情景例句
We need to promote light industry in this town.
我们需要推动这个城市的轻工业发展。
I used to be a pilot. Now, I'm a parachutist.
我曾经做过飞行员，如今是伞兵了。
We are going to have the final examination next week.
我们下周举行期末考试。