Umbc
[医][=umbilical cord]脐带
🗣️ 情景例句
Men and women, young and old, to give us their time.
不管男女老幼 ，请他们贡献时间。
You forgot to fasten the collar buttons.
你忘了系鞋带。
We resolve to get up earlier each morning,
我们决心每天早晨起得早些；