letterKK [ˋlɛtɚ] /ˈlɛtɚ/名詞1信、書信、信函She wrote a long letter to her grandmother every month.她每個月都寫一封長信給奶奶。2字母The word begins with a silent letter that many people forget.這個字開頭有個不發音的字母,很多人都會忘記。3字面意義、嚴格字義正式They followed the letter of the contract but ignored its spirit.他們遵守了合約的字面規定,卻無視其精神。4文學、學問正式,常用複數He spent his whole life in the world of letters.他一生都投身於文學界。5公函、正式函件The bank sent us a letter of credit the following week.銀行隔週就寄來了一封信用狀。