The 10-place grid penalty in China was very difficult as it's a hard track to get close to people and overtake so, in many ways, I knew that was going to hurt us.
It is hard to track statistics for a part of the economy so informal and atomised.
The global nature of the organized crime syndicates involved makes them hard to track down and prosecute.
They sought sanctuary in the rough country, where their mounted pursuers would find it hard to track them.
Many transactions conducted over the Internet, for example, are hard to track, increasing the scope for dodging taxes.
Trade organizations find file-sharing data so hard to track that it isn't even included in their official piracy calculations.
If someone is lost overboard, or if there is serious pollution from a boat, it can be hard to track them.
The extent of Chinese offshore real estate holdings is hard to track, given the number of jurisdictions involved and the desire for discretion.
FORBES: Building Out (of China): Property Tycoons Follow Wealthy Customers Overseas
He said Belmoktar in particular may be hard to track down.
CNN: Algeria attack changes terror landscape in North Africa
They have a good idea who the insurgent families are, but have found it hard to track down leaders in a movement which is so fragmented.
Scientists around the world who are investigating the strain suggested the virus could be hard to track because it shows no symptoms in poultry but can be fatal in humans.
Cameraphones, which are hard to track accurately, are underrepresented.
As is the case with many of the secretive billionaires that Forbes has recently identified, pictures of the Epprechts are hard to track down, and even harder to obtain the rights to.
FORBES: Meet The Epprechts, The Swiss-American Family With A $2 Billion Cheese Fortune
Michael K. Dorsey, a professor of environmental studies at Dartmouth and coauthor of Carbon Trading, says that while pollution-trading programs work in the U.S. to control pollutants like sulfur dioxide, it will be hard to track such schemes in developing nations.
Michael K. Dorsey, a professor of environmental studies at Dartmouth and coauthor of Carbon Trading, says that while pollution trading programs work in the U.S. to control pollutants like sulfur dioxide, it will be hard to track such schemes in developing nations.
For one, it can be hard to keep track of lots of employees.
FORBES: Feds Okay Start-up That Monitors Employees' Internet and Social Media Footprints
Emmanuel Besnier may be a hard man to track down in person, but his fortune is slightly easier to trace.
In Cook County, there are no hard numbers to track how many renters may have been affected by foreclosure evictions.
The police complain that having so many petty sex offenders on registries makes it hard to keep track of the truly dangerous ones.
Titania had a hard time keeping track of all the mortal names, except for Beadle and Blork, but those were distinctive names, and actually rather faerielike.
Also, over a period of a decade, it can be a bit hard to keep track of what happened when and all that, even if you have played all the games.
Gen Singh was not available for comment but one of his staff officers, on condition of anonymity, told the BBC that the army chief had "pushed very hard to fast-track the raising of the two divisions".
Volunteer for the hard problems (without losing track of your current job, of course).
FORBES: What Is The Best Way For A Product Manager To Get A Director Or VP Job At A Start-Up?
But the big choices coming down the track are not hard to spot for any disinterested reader of this report.
But the constant circulation of Somali-Americans back to Somalia to visit family or conduct business makes it hard for American intelligence to track would-be jihadists.
ECONOMIST: Somalia and the United States: What's to be done? | The
Without it, any potential trade deal is likely to get gummed up on Capitol Hill, and for this reason, the administration has lobbied hard for renewal of fast track.
应用推荐