剑桥词典abbreviation for care of: used in addresses when the person you are writing to is staying at someone else's home 由…轉交（care of的縮寫） Sylvia Mendez, c/o Ann Smith, 12 Glastonbury Lane, Bickerton 比尅頓格拉斯頓伯裡巷12號安‧史密斯收，轉交西爾維婭‧門德斯 返回 c/o