Erb's sign
[医] 欧勃氏征
🧩 词语组成解析
🗣️ 情景例句
When does he arrive?
他什么时候到？
A friend in need is a friend indeed.
患难朋友才是真朋友。
Litter baskets have been placed under the trees, but people still throw their rubbish everywhere.
树下都已设置了废物筐，但是人们仍到处扔垃圾。