填空题 Phonological rules may move phonemes from one place in the string to another. For example， Modern English verb ask was Old English askian， with the /k/preceding the/s/.Sound change as a result of sound movement is known as m（）.

填空题 While the meaning of a sentence is abstract and decontextualized， that of an u（） is concrete and context-dependent.

填空题 That the denial of one member of two words implies the assertion of the other is the characteristic of c（） antonyms.