Epidemiogenesis
流行病发生
🗣️ 情景例句
It's extremely good of you to do this for me.
你帮我做了这件事，真是太好了。
I ate cakes for dinner yesterday.
我昨天晚饭吃的是蛋糕。
Early next morning, she heard planes passing overhead and wondered how she could send a signal.
第二天一大早，她听到头顶上有飞机飞过，但不知道怎样才能发个信号。