C级核心词汇推荐:
campus n. <美>校园(campus activities/校内活动; on(the) campus/在校内); 
can v. 装进罐中；把食品装罐 n. 罐头，铁罐 v. 能，可以( can not but/[后接动词原形]不得不; can not...too [over]...越……越好 (e.g. You can not be too [over] careful. 你越仔细越好。);
campaign n. 竞选运动；运动 (a campaign against [for] ... 反对[赞成]…的运动)
campus n. 〔美国〕校园 (on (the) campus 在校内)
Canada n. 加拿大;
cancel v. 删去, 取消 (cancel –delete删去 )(cancel – call off取消)
cancer n. 癌；肿瘤; 
candidate n. 候选人，投考者;
capable adj. 有能力的，能干的；有可能的(be capable of/[指人]有……的能力或倾向；[指物]易于); (capable -- able)
capital n. 首都，资本;
captain n. 船长，舰长，机长, (球队的)队长, 指挥者
capture v. 俘获，捕获, 夺取，夺得(奖品等) (capture -catch捕获)
car n. 汽车；小汽车； (= motor car)；客车，[铁]车厢;
card n. 纸牌；卡片; 
care n. 注意；照料；照顾；喜爱(care for/喜欢；照顾;  take care/当心; take care of/照料；关怀；处理; with care/小心; care about/关心；担心; care nothing about/对……漠不关心；对……毫不介意);  (care for – like – love –enjoy – be fond of喜欢)
career n.事业；(career woman/职业妇女);  （career – profession 职业）
careful adj. 小心的，仔细的(be careful about/注意);
careless adj. 粗心的；疏忽的;
carry  v. 携带，运送(carry on/继续; carry out/实现；完成；实行; carry through/帮(某人)渡过难关); 
case n. 事；病例；案例；情形；场合(in case/以防；可能；in case of/如果；万一; in any case/无论如何; in most cases/大多数情况下); 
cash n. 现金 v. 兑现( to pay (in) cash/现金支付; short of cash/缺钱); 
cast v. 投，扔, 【冶金】浇铸，铸造, 撒网 （cast – throw投，扔）
casual adj. 随便的；不经意的；临时的;(casual – informal随便的)
cat n. 猫；猫科动物(如猫、虎、狮等) (rain cats and dogs/下倾盆大雨); 
catch v. 捕获；赶上(车船等)；发觉；感染(疾病)；抓住 (catch up with/赶上, catch a cold/感冒; catch attention/引起注意);  (catch – grasp – grip – seize抓住)
category n. 类型，部门，种类 (category –kind种类)
cater v. 备办食物；满足(需要)；投合(cater for/替(某人)办酒席; cater to/迎合；投合); (cater for – satisfy – meet满足(需要))
cause n. 原因；事业 v. 引起，促成 (cause – bring about引起) (cause –reason原因)
cease v. 停，终止(cease – stop - end)
celebrate v. 举行(仪式)；庆祝(胜利等)
cell n.【生物学】细胞；【电学】电池
central adj. 中心的，中央的, 重要的，主要的 (central - important)
center n. 中心, 中枢，核心；中心人物 (center – heart – core – middle中心)