pillar box
noun [ C ] UK uk/ˈpɪl.ə bɒks/ us/ˈpɪl.ɚ bɑːks/
（红色的）信筒，邮筒
a tall, red, metal box in the street or other public place in which you can put letters for them to be collected and sent to someone else
Compare: letterboxpostbox
英汉双解词典收录81607条英汉双解翻译词条，基本涵盖了全部常用单词的读音、翻译及用法，是英语学习的有利工具。