Pain control helps improve the patient's quality of life. Oral and facial pain can affect eating, talking, and many other activities that involve the head, neck, mouth, and throat. Most patients with head and neck cancers have pain. The doctor may ask the patient to rate the pain using a rating system.
Learner's definition of COMPREHENSION. : ability to understand. [noncount] He has not the slightest comprehension of the subject. [=he does not understand the subject at all] The students showed excellent reading/language comprehension. The war caused suffering beyond comprehension. [=suffering that is impossible to imagine]
Definition of Second Language Acquisition. The definition of second language acquisition and learning is learning and acquisition of a second language once the mother tongue or first language acquisition is established. Second language acquisition or SLA is the process of learning other languages in addition to the native language. For instance, a child who speaks Hindi as the mother tongue starts learning English when he starts going to school.