Translations remain error-prone, but their quality is usually sufficient for readers to grasp the general drift of the source contents. No more than that may be required in many cases, such as international web browsing (an application scarcely anticipated in decades of MT research). Also, MT applications on hand-held devices, designed to aid international travellers, can be sufficiently accurate for limited purposes such as asking directions or emergency help, interacting with transportation personnel, or making purchases or reservations,  When high-quality translations are required, automatic methods can be used as an aid to human translators, but subtle issues may still absorb a large portion of a translator's time.