[president, precedent]

president n. 总统

precedent n. 前例

[commerce, commence]

commerce n. 商业

commence v. 开始

[magnify, amplify]

magnify v. 放大（尺寸）

amplify v. 放大（信号）

devise -v -devise a experiment
leather -n -a leather jacket
combine -n,v -combine red and green; combine family with career;
diploma -n -a high school diploma
haven -n -a haven of peace
professional -adj,n -professional advice; a mental health professional
arouse -v -arouse curiosity
ascribe -v -ascribe his success to skill and hard work
unprecedented -adj -at unprecedented levels
abuse -n,v -abuse of power; child abuse; abuse drugs

medication -n -take medication for depression
manufacturer -n -engine manufacturer
quota -n -fishing quotas
entity -n -a legal entity
commence -v -commence our meeting
liability -n -a limited liability corporation; a liability to the team
amplify -v -microphone amplified your voices
magnetic -adj -magnetic field
exert -v -exert a force
emphasize -v -emphasize the importance of

literary -adj -literary work
incredible -adj -an incredible opportunity
valid -adj -a valid contract; make some valid points
fossil -n -animal fossil
alien -n,adj -illegal aliens; be alien to you
generous -adj -is generous with her time
reverse -n,v,adj -reverse the trend; the reverse is true
opponent -v -beat my opponent
stimulus -n -a fiscal stimulus
accuse -v -accuse me of lying

privacy -n -respect your privacy
dilemma -n -the worst dilemma of my life
occupation -n -state your name and occupation
accord -n,v -perfect beauty accorded with her mood
admit -v -admit the truth; be admitted to college
snail -n -a slow snail
basis -n -the basis of our faith
transfer -v,n -tansfer to a new school
venture -n,v -joint ventures; venture into the forest
effective -adj -effective treatments