写并发送（给某人）一张便条或电报：指通过书写并发送一张便条或电报与某人联系。
communicate (with) in writing
同义词： write
... the company. 欢迎随时来坐坐。我通常在家，也喜欢游人做伴。 drop a line 写信 Drop me a line! 给我写信！ ...
... drop press 落锤，模锻压机，模锻压力机 drop a line 写信给某人 drop anchor 抛锚 ...
... drop a letter from a word单词中漏掉一个字母 drop a line垂钓 drop a lot of money at a race在竞赛中输了不少钱 ...
写信给某人
Dear, I thought I'd drop a line.
亲爱的，想起来要给你写封信。
I must drop a line to my uncle to thank him for having us.
我得写封信给舅舅，感谢他邀请了我们。
You are welcome. Have a nice trip. Please drop a line after you get there.
不客气。旅途愉快。到那儿后记得给我写信。
This pink line has to drop off from a all the way to c.
这条粉色的线要经过纵坐标a-c
博弈论课程节选 : 耶鲁公开课
And, yes, there are even fish in the river -- carp, catfish and bass -- and anglers can drop a line as long as they have a state permit.
With today's sensitivities about data protection, it is hard for ministers to drop a line directly to Joe or Gemma congratulating them on their exam results and urging them to think about going to university.
If any readers know anything about Oranto please leave a comment or drop me a line.