Nereites
（遗迹化石）似沙蚕迹
🗣️ 情景例句
He met his girfriend throught a public chat room.
他是在一个公共聊天室里认识他女友的。
I invited him last Thursday.
我上个星期四邀请他。
I looked out of the window.It was dark outside.
我望望窗外，外面一片昏暗。