Letterbox-A的意思|示意

This is not ideal for watching widescreen movies: you get a thick black "letterbox" bar top and bottom.

用这个屏幕看宽银幕电影可不怎么样：你会在电影上下各得到一条黑黑的粗条。

I think applying a Letterbox resizing is using matrix transformation, so even if your image appears larger, its position and size are still the same.

我想申请一个信箱大小是使用矩阵变换，所以即使你的图像显得更大，其位置和大小都一样。

Doyle dropped to a crouch and peered in through the letterbox.

多伊尔蹲下来，通过信箱仔细往里看。

He got a large piece of cardboard, painted a sign begging for the bicycle to be returned, and tied the sign to the letterbox.

他拿了一大块硬纸板，画了一个乞求归还自行车的牌子，然后把牌子系在了信箱上。

Sending these cheques to people with little financial discipline or will power is just like posting bars of chocolate through a school letterbox.

把附带极少的财务纪律或者权力的这些支票寄送出去，就好比通过学校邮箱邮寄巧克力棒一样。

The next day there was a letter in her letterbox.

第二天她的信箱里有封信。