In modern life it is difficult to monitor your body.
It is very difficult to monitor their whereabouts.
By definition, this type of activity is difficult to monitor.
Secondly, such a programme would be extraordinarily difficult to monitor or control.
Compliance with this requirement is difficult to monitor in third countries.
In addition, such division would be difficult to monitor.
Strict and complex rules that are difficult to monitor should be avoided.
Il faut éviter les règles strictes et complexes qui sont difficiles à surveiller.
They can be hard to manage and difficult to monitor.
Ils peuvent s'avérer complexes à gérer et difficiles à surveiller.
They're much more difficult to monitor than large-scale plantations.
Ils sont beaucoup plus difficiles à surveiller que les plantations industrielles.
Beaked whale populations are difficult to monitor due to their elusive nature.
Les populations de baleines à bec sont difficiles à surveiller en raison de leur nature discrète.
This is mainly because reintegration can be difficult to monitor.
Notamment parce que cette réintégration est difficile à surveiller.
Some variables are difficult to monitor at all.
Certaines variables sont difficiles à surveiller, quel que soit le moyen.
Temperature difficult to monitor and maintain constant.
Température difficile à contrôler et à garder constante.