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
That's right.
是的。
It's very popular.
它很受欢迎。
there is no evidence that the total amount of activity is any less.
但没有迹象表明，其活动总量有任何减少。