Ichnofacies
化石相; 遗蹟化石相; 遗蹟相
🗣️ 情景例句
using as many letters as possible.
尽可能多用字母，
Donald will associate one fact with the other.
唐纳德可望把一个事实和另一个事实连结起来。
Life on a desert island is wretched.
认为荒岛生活很可怕，