Urachus
脐尿管
🗣️ 情景例句
Excuse me. Is this seat taken?
对不起 ，请问这个座位有人吗？
Mother's apple pie always tastes delicious.
妈妈做的苹果派很好吃的！
How would you like to proceed with the negotiations?
你认为该怎样来进行这次谈判呢？