慢速英语:Improving Your Grammar and Pronunciation

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emphasize – v. to place emphasis on (something)

transformation – n. a complete or major change in someone's or something's appearance, form, etc.

expletive – n. grammar a word that enables the writer or speaker to move the stress, or emphasis, in a sentence

indefinite article – n. the word a or an used in English to refer to a person or thing that is not identified or specified

definite article – n. the word the used in English to refer to a person or thing that is identified or specified

adverb – n. a word that describes a verb, an adjective, another adverb, or a sentence and that is often used to show time, manner, place, or degree

pronunciation - n. the way in which something is said

phrase – n. a group of words that express an idea, but do not generally form a complete sentence

noun – n. the name for a person, place or thing

grammatical – adj. of or related to the rules of language