Microfossils
(microfossil 的复数) n.微体化石,微化石
🗣️ 情景例句
I keep in touch with my family regularly.
我定期和家里保持联系。
I'm afraid you will be discouraged.
我怕你会灰心。
but we found that it traced its way through the trees.
没想到它到树林中继续向前延伸。