Monoplacophora
单板类
🗣️ 情景例句
You have nothing to worry about.
你没有什么好担心的。
It was a terrible experience,and I won't forget it.
它是可怕的经验，我不会忘记它。
Their sleeping bags were warm and comfortable, so they all slept soundly.
睡袋既暖和又舒服，所以，他们都睡得很香。