记忆方法
词根记忆法：
over-在…上+come来over-，在上，超过，come，来到。原义为赶上，超过，引申词义克服，战胜。
双解例句
小知识
Use the verb overcome when you talk about someone who has triumphed over adversity. It's great to see a friend who's always struggled in school overcome his learning disabilities and make the honor roll.
You can also be overcome with emotions, or overwhelmed by your feelings. Many people feel so overcome with sadness at a movie — or happiness at a wedding — that they regret not bringing a pile of tissues with them. The verb overcome also means to win or surpass. If you are going to win the marathon, you are going to have to overcome the five runners still ahead of you.
实用短语
常用短语
单词用法
overcome myself 克服自己
overcome all difficulties 排除万难
overcome fear 克服恐惧
conquer：侧重战胜和控制。书面用词。
overcome：多指战胜或克服非物质的东西，如困难和不良习惯等。语气较弱也可指在斗争或竞争中战胜或压倒对方。
overthrow：指彻底击败对手，使其丧失力量和地位。
defeat：普通用词，多指在战争、比赛、竞选或辩论中战胜对手，侧重胜利的暂时性。
beat：口笔语均可用，可与defeat换用。
subdue：正式用词，与conquer同义，但强调失败后的臣服状态；也可用作借喻，表克制、压抑感情、欲望等。
词根词缀
前缀: over-
1. 表示”翻转”; 2. 表示”在……之上”; 3. 表示”过度,过分,超过”
adj.
overall 全部的, 全面的over过度,过分,超过+all全部→adj.全部的, 全面的
overcorrect 矫枉过正的over过度,过分,超过+correct改正→adj.矫枉过正的
overcrowded 挤满的over过度,过分,超过+crowded拥挤的→adj.挤满的
overseas 外国的, 海外的over超过+sea海+s复数→adv.海外 adj.外国的, 海外的
overwrought 紧张过度的,兴奋过度的over过度,过分,超过+wrought=work工作→过度工作
adj.&adv.
overnight 一夜间,一下子;突然over翻转+night夜, 夜晚→翻过一夜→一夜间→一下子;突然
adv.
overseas 海外over超过+sea海+s复数→adv.海外 adj.外国的, 海外的
n.
overhaul 彻底检修over翻转+haul拉→拉过去检修
overthrow 推翻over翻转+throw扔→扔翻了→推翻
overturn 颠覆over翻转+turn转→翻转
overbridge 天桥over在……之上+bridge桥→上面的桥→天桥
overcoat 外套over在……之上+coat衣服→在衣服上的衣服→外套
overdose 药物过量over过度,过分,超过+dose剂量→n.药物过量
overproduction 生产过度over过度,过分,超过+production生产→n.生产过度
overstudy 用功过度over过度,过分,超过+study学习→n.用功过度
overwork 过度劳累over过度,过分,超过+work工作→n.过度劳累
n.&v.
overlap 重叠over在……之上+lap交叉→[大腿]交叉→重叠
overflow [使]溢出, 超值over过度,过分,超过+flow流动→流出来了,溢出
v.
overtake 袭击,压倒over翻转+take拿,占领→v.袭击,压倒
overcome 战胜,克服over在……之上+come来→来到上面→战胜
overhang 悬于……之上, 悬垂over在……之上+hang悬挂→v.悬于……之上, 悬垂
overlook 俯视;疏忽over在……之上+look看→在上面看→俯视,引申为疏忽
override 推翻,不理会over在……之上+ride骑→骑在上面→推翻[下面的]
overwhelm 压倒;泛滥over在……之上+whelm推翻;淹没→翻过来→压倒
overact 表演过火over过度,过分,超过+act演出→v.表演过火
同义词辨析
这些动词均含”征服，战胜”之意。