Integumentary system
[医] 体被系统
🧩 词语组成解析
a. 外皮的, 包皮的
🗣️ 情景例句
Don't open the door if you don't know who it is.
如果有陌生人敲门不要开门。
Do you have a book?
你有一本书吗？
Jeremy Hampden has a large circle of friends and if very popular at parties.
杰里米。汉普登交际甚广，是各种聚会上深受大家欢迎的人。