aninformaltalkinwhichpeopleexchangefeelings,news,andthoughtsabookthatteachesaparticularsubjectandthatisusedespeciallyinschoolsandcollegestextbookn.教科书；课本conversationn.交谈；谈话thewayinwhichalanguageoraparticularwordorsoundispronouncedifyousaysth.aloudyousayitinyournormalvoicealoudadv.大声地；出声地pronunciationn.发音；读音abletowaitcalmlyforalongtimeortoacceptdifficulties,people’sannoyingbehavioretcwithoutbeingangrypatientadj.有耐心的；n.病人asetofwordsexpressingastatement,aquestionoranorder,usuallycontainingasubjectandaverb.InwrittenEnglishsentencesbeginwithacapitalletterandendwithafullstop/period(.),aquestionmark(?)oranexclamationmark/exclamationpoint(!).sentencen.句子
