1.
Drop the love letter in the mail, and look forward to the response.
把信投入邮筒，然后等着回音吧。
2.
He dropped the letter in the mailbox.
他把信投入了邮筒。
3.
Take this letter to the post, please.
把这封信投入邮筒。
4.
He dropped two letters into a post box.
他把两封信投入了邮筒。
5.
Take the letter to the post.
请把这封信投到邮筒里。
6.
pop a letter in the post
把信一下子投进邮筒
7.
I dropped the letter into the mailbox in front of the Post Office.
我把信投进邮局前的邮筒里。
8.
I even paused briefly with the letter part way into the mail slot before I thrust the letter into the mailbox.
甚至在信已经部分插入投信口时，还犹豫了一会儿才把它推进邮筒。
9.
He stopped at the pillar-box and dropped the letter in.
他在邮筒旁停下，把信投了进去。
10.
Will you pop this letter in the post for me?
你能帮我把这封信投进邮筒吗？
11.
I dropped the letter in the mail-box on the corner.
我把信投进了拐角处的邮筒里。
12.
He stuck down the envelope and dropped it into the mailbox.
他用糨糊把信封粘好后便投进邮筒中。
13.
Tell me where I can post them.
请问,哪里有投信的邮筒?
14.
"Both, sir; one with a letter, and the other put it in the post."
“两者都是，先生，一个写信，另一个去投入邮筒。”
15.
any of the regular collections(esp from a post-box)or deliveries(eg to a house)of letters,etc
信件等的定时收集（尤指自邮筒中）或投递（如入户）
16.
He stamped the letter, sealed it off and then, put it into a letter box.
他在信上贴好邮票，封好信口，然后把信投入信箱。
17.
I drop the letter into the mailbox in front of the Post Office.
我把信塞进邮局前面的邮筒里。
18.
He then dropped both the fire and the ice into the mailbox.
他把冰和火一起投进了邮筒。