Larsen's disease
[医] 拉森氏病, 拉-约二氏病(髌骨下极副骨化中心形成)
🧩 词语组成解析
🗣️ 情景例句
If you don't know a person's last name, use 'ma'am' or 'sir'.
如果你不知道一人的姓， 你应称呼他为 'ma'am' 或 'sir' 。
You are to blame.
你该受谴责。
I went downstairs and sat in front of the television pretending to read.
便来到楼下坐在电视机前假装看书。