Endoprocta
内肛亚纲
🗣️ 情景例句
I think it will be a mutually beneficial relationship.
我认为那将是对双方都有利的关系。
I didn't know whether to send the letter airmail or not.
我不知道是否送航空邮件。
One day, the man downstairs went to talk to the man. He went upstairs and knocked the door.
一天，楼下人去找楼上人谈谈。 他上楼敲门。