Descriptors
n. 描述符, 叙述元；叙述语（descriptor的复数形式）
🗣️ 情景例句
Oh, how do you do?
噢 你好吗?
I doubt he'll win the election.
我怀疑他是否能赢得选举。
Only the Earth provides ideal conditions, and even here it has taken more than four billion years for plant and animal life to evolve.
只有地球提供理想的条件，而即使在这里，植物和动物的进化也用了40亿年的时间。