Periostraca
n. 角质层 (periostracum的变形)
🗣️ 情景例句
Thanks, Michelle.
谢谢， Michelle。
I should have studied last night, but I was too tired.
我昨晚应该学习，但是我太累了。
Let's go together then. I'll meet you at the theatre at six-thirty.
到时咱们一块儿去看吧。我六点半在剧院跟你会面。