American English has quite a few phrasal verbs that are derived from the railroad industry. Railroad tracks lead the way wherever they are laid. Therefore, if you “lose track” of someone you have lost your way and have broken contacts with that person.
When you are “on track”, you are following the correct path. Going off track separates you with the right way.
lose track of ขาดการติดต่อ = to lose all contact with, fail to maintain current information about.
Example: We lost track of him after he moved to Chiangmai. เรา ขาดการติดต่อกับ เขา หลังจากที่เขาย้ายไปอยู่เชียงใหม่
I had completely lost track of what day it was since I have stopped going to work.
Oh, you’re home early, ” you’d say, though I was never home early, if anything I was late- you’d just lost track of time.
The DeKalb County Recorders Court — one of the busiest traffic courts in the state — has lost track of hundreds of thousands of citations, costing the county and the state possibly tens of millions of dollars in uncollected fines, according to internal court e-mails.
How long now? How long had he been gone? She had no idea. She had always had a fairly accurate clock in her head, but now it was as useless as the one on the wall. It was uniquely horrible to have lost track of time so completely. She remembered her big clunky watch and looked down, but the watch was gone. There was just a pale patch where it had been. He must have taken it.
Though Defense has long been notorious for waste, recent government reports suggest the Pentagon’s money management woes have reached astronomical proportions. A study by the Defense Department’s inspector general found that the Pentagon couldn’t properly account for more than a trillion dollars in monies spent. A GAO report found Defense inventory systems so lax that the U.S. Army lost track of 56 airplanes, 32 tanks, and 36 Javelin missile command launch-units.
Windows into Southern Thailand 