To drop someone a line is to write them a short note--literally, a line of text. It is not really an idiom, it is an elliptical statement that is completed by Drop someone a line (of text in his mailbox).
I haven't talked to her in a while, I should drop her a line to see how she's doing.
it means to call them
It means to call or email someone.
At the drop of a hat means there is no delay. He came and picked me up immediately after I called.
Someone could drop a tong and put it back where they found it. You're waiting in line for a while.
Meaning a very small or unimportant amount of something or someone. Hope that helps =)
The meaning of glass drop is, when glass is dropping
It depends on the context. * A drop of water will be translated as "une goutte". * A drop in prices or temperature will be translated as "une diminution, une baisse" The verb drop will also be influenced by the context it is used in. * To drop a bomb = lancer * To drop an object = laisser tomber, échapper * To drop charges or to drop someone = laisser tomber * To drop a line = laisser
It means to leave someone in a helpless or desperate situation. If you were to drop someone off in the middle of the Sahara with no water, shelter, or transportation, you would have left them stranded.
The voltage drop in a line can be decreased by
a drop of water or dew drop