Alterne
n. (生态学用语)交替群落
🗣️ 情景例句
All right. Please hold two orchestra seats for us.
好，请帮我们保留两张前排的座位。
My uncle is a high school principal.
我的叔叔是一位高中校长。
These attracted many visitors, for they were not only of great architectural interest, but contained a large number of beautifully preserved frescoes as well.
这些教堂吸引大量游客，不仅是因为建筑风格奇特，而且还有大量保存完好的壁画。