Protoderma
原皮藻属
🗣️ 情景例句
Over?
结束？
At night, all cats are grey.
猫在夜晚皆灰色（丑妍暗中难分辨）。
it is extremely difficult to estimate the true value of the services which people perform for us.
但要估算别人为我们为所提供的服务的价值却是极其困难的。