letterbox

英 [ˈletəbɒks]

美 [ˈletərbɑːks]

n. 邮筒，信箱
v. 宽银幕模式播放

复数：letterboxes　

BNC.21441 / COCA.43469

牛津词典

noun

verb

宽银幕模式播放
to present a film/movie on television with the width a lot greater than the height, and with a black band at the top and bottom
1. a letterboxed edition
  宽银幕模式的版本

柯林斯词典

（门上的）信件投递孔；（建筑物入口处的）信箱
Aletterboxis a rectangular hole in a door or a small box at the entrance to a building into which letters and small parcels are delivered.

in AM, usually use 美国英语通常用 mailbox

（电视或计算机显示）信箱格式的，上下黑边的，宽屏的
If something is displayed on a television or computer screen inletterboxformat, it is displayed across the middle of the screen with dark bands at the top and bottom of the screen.

双语例句

Before the Internet, dead drops, often used by spies, would involve hiding a written message or package in a secret location or letterbox that only fellow operatives would know about.
在互联网出现之前，间谍通常采用这种方法，比如将信件或是包裹藏在一个只有自己人知道的秘密地点或信箱中。
Clip the edges of the video input source to remove noise or to create letterbox content. All values are in pixels.
剪裁视频输入源的边缘以删除噪音或创建信盒内容。所有值均以像素为单位。
Just then a letter popped through the letterbox.
就在那时，信箱里突然塞进了一封信。
Each day, with strength and shame, Mary trudged to the letterbox in hope, only to swivel, shrivel and slink back inside.
每天，带着兴奋和惭愧，玛丽跋涉到满怀希望的邮箱前，只是为了打开，关上然后偷偷溜进屋子。
I personally saw him put the letter into the letterbox.
我亲眼看见他把信投送到信箱里。
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。
Christmas cards are starting to drop through the letterbox and many contain infuriating round-robin newsletters from people I barely know.
圣诞贺卡又开始挤满信箱了。很多贺卡都是我几乎不认识的人发来的，附带着令人恼火的群发通讯。
I tried to push the package through the letterbox.
我试图把这包东西从投信孔里塞进去。
Once she had calmed down, she fell asleep, and I locked her doors from the outside and put the key back through the letterbox. I set off walking back to my own house.
她一平静下来就睡着了，于是我从外面把门锁上，再把钥匙从邮筒放回去，然后动身往回走。
I put the letter into the letterbox.
我将信投入信箱。