Mail slot
= letter box (1)
🧩 词语组成解析
mail
[mel]
n. 邮件，邮政;邮政（制度）;邮务员，邮递员;〈古〉袋，旅行包;
vt. 邮寄;给…穿盔甲;
vi. 投邮;
slot
[slɑt]
n. 位置;狭槽，水沟;[人名] 斯洛特;硬币投币口;
vt. 跟踪，跟着足迹追赶;开槽于;
🗣️ 情景例句
OK. But don't delay too long. Or that trip will be all booked.
好，但不要拖太久，否则会订满的。
I'm afraid she's not here.
很抱歉，她不在。
A new machine called 'The Revealer' has been invented and it has been used to detect gold which has been buried in the ground.
一种叫“探宝器”的新机器已经发明出来，并被人们用来探测地下埋藏的金子。