N
narrate 叙述，讲述 ～ the story of sb’s life
nasty 龌龊的，肮脏的 a～ room
necessitate 使成为必须，需要 The emergency ～d a change in plans.
necessity 必要(性)，(迫切)需要 There is no ～ for disappointment.
neglect 忽视，忽略 ～ one’s health
negligent 疏忽的，大意的 be ～ about traffic regulations
nominal 名义的，有名无实的 a ～ leader
nominate 提名 a ～ leader
noteworthy值得注意的，显著的a ～ day
notorious 臭名昭著的a ～ thief
notwithstanding 虽然，尽管 They traveled on,～ the storm
nourish养育Milk is all we need to ～our small baby
numb 麻木的，失去感觉的 fingers ～ with cold
O
object 物体，事物 cultural ～s
objective 目的，宗旨 political ～s
oblige 强迫，迫使 In certain countries the law ～s parents to send their children to school
obscure 晦涩的，费解的 an ～ text
obsolete 废弃的，淘汰的 Wooden warships are ～.
obstinate 顽固的，固执的，倔强的The girl would go her own way, in spite of all warnings
occasion 时刻，场合They met on three ～s
occupy 占用，占有My books ～ a lot of space
occur 发生，存在，出现 when did the earthquake ～?
odd的奇数的，单的，奇怪的One ,three five are ～numbers
offend 冒犯，使生气 She was afraid of ～ing anyone.
offence 犯法行为，过错 They were arrested for drug ～s.
offset 补偿，抵消They gains ～the losses.
omit 省略，删去 Minor points may be omitted.
opaque 不透明的A brick wall is ～.
optimistic 乐观的，乐观主义的
option 选择权 It is your ～ to take it or leave it
orient 东方，东方国家 political theory in the West and in the Orient
origin 起源，由来 a word of Latin ～
ornament 装饰品，点缀品 We bought ～s for the Christmas tree
orthodox 正统的，正宗的 an ～ economic theory
outline轮廓，外形 He saw the ～ of a house against the sky
overflow 泛滥 Every spring the river ～s
overhaul 大修，全面检查，彻底革新～ a faulty machine
overhear 偶然听到，偷听到I wouldn’t like to be ～d
overlap 重叠，部分相同 The Renaissance overlapped the later Middle Ages
overtake 赶上，超过 He ran out of the door to ～ her
overthrow 推翻，打倒 a plot to ～ the government
overwhelm 征服，压倒，毁坏 He took 45% of the ballots and ～ed his two main rivals
