Erichsen's sign
[医] 埃里克森氏征(检骶骼疾患)
🧩 词语组成解析
🗣️ 情景例句
I have to cram all night for tomorrow's exams.
为了明天的考试，我得熬夜临阵磨枪。
What do you do in your spare time?
闲暇时，你干些什么？
You're really talented.
你很有天赋。