letterbox的复数形式为：letterboxes...

letterbox的音标：letterbox的英式发音音标为：['letəbɒks]letterbox的美式发音音标为：['letərbɒks]...

n.邮筒，邮政信箱...

On a cold day there can be quite a draught from the letterbox.天冷的时候能明显感觉到从信箱那边吹来的过堂风。Peep through the letterbox and see if anyone is at home.透过信箱看家中是否有人.I personally saw him put the letter into the letterbox.我亲眼看见他把信投送到信...