contract ['kɑntrækt] 词频1 词根: con

n. 合同;契约;协议;

💡 con共同+tract拉→共同拉回去→收缩；对大家都有制约→合同

"The offers for the contract were all in the same ballpark ."

近义：narrow, retrench, shorten, shrink, straiten, compress 反义：broaden, sack, terminate, boot, discharge, cashier

because [bɪ'kɔz] 词频1 词根: be

conj. 因为;

💡 cause, cuse 表原因,目的;司法程序,诉讼

"He was arrested because of his political affiliation."

近义：since, whereas, for, forasmuchas

reason ['rizn] 词频1 词根: 思考

n. 理由;原因;理性;理智; vt.& vi. 推理，思考;争辩;辩论;向…解释;

💡 再（re）生一个（a）儿子(son)， 理由是第一个儿子夭折了

"The reason for the flood was that heavy rain."

近义：ratiocinate, think, conclude, deduce, deduct, motivation 反义：idiocy, applesauce, imbecility, inaccuracy, inanity, mistake

cancel ['kænsl] 词频2 词根: /kə/

vt. 取消，注销;抵消，偿还;〈数〉约去; vi. 抵消，中和; n. 撤销，注销;〈数〉（相）约;

💡 能(can)把嫦娥(ce)一人(l) 取消吗？ 网友：tom 补充：得了cancer（癌），并不意味着生命被cancel（取消）

"The company reserves the right to cancel this agreement in certain circumstances."

近义：neutralize, oppose, resist, counter, counteract, counterbalance 反义：implement, appoint, inaugurate, inchoate, initiate, install

fulfil [ful'fil] 词频2

vt. 履行（条约，义务），遵守，执行（命令等）;完成（计划等），做完（工作）;达到（目的），应验（预言等），满足（希望）;使臻于完善，充分发挥潜在的能力;

"He really wants to fulfil his role as godson properly."

近义：please, satisfy, suit, content, fulfill, answer 反义：disobey