Secernentea
胞管肾纲
🗣️ 情景例句
Who was it?
谁来的电话
Car manufacturers are having a bad time.
汽车制造商的日子不好过。
For most of the earth's history they have been the only form of life on our planet.
在地球上发展的大部分进程中，细菌是地球上唯一的生命形式。