Mail directory
[计] 邮件目录
🧩 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;
🗣️ 情景例句
The kids hang their stockings over the fireplace for Santa Claus to fill them with candies and toys.
孩子们在火炉边悬挂长筒袜等待圣诞老人给他们塞糖果和玩具。
I subscribed to a lot of periodicals last year.
去年我订了许多期刊。
it requires 97 per cent less energy to travel the quarter of a million miles from the Moon to Earth-orbit than the 200 mile-journey from Earth's surface into orbit!
因此，从月球到地球的25万英里所消耗的能量要比从地球表面进入地球轨道的200英里所耗能量少97%。