VOA慢速英语:你害怕形容词和介词吗？

preposition – n. grammar : a word or group of words that is used with a noun, pronoun, or noun phrase to show direction, location, or time, or to introduce an object

cream – n. the thick part of milk that rises to the top; the part of milk that contains fat

response – n. a reaction or answer

casual – adj. not planned; done without much thought or effort

specific – adj. special; exactly presented or stated

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