mend
vt.改正，修正(revise, correct);改进
We must do something to mend his reputation.
我们必须做点儿什么来改善他的名声。
modification
n.更改，修改(change)
modify
vt.修改(change, adapt)
I modified my travel plans by staying an extra night in Rome.
我在罗马多住了一晚，从而改变了我的旅行计划。
modulate
vt.调整(change, modify)
The opera singer modulated her voice skillfully.
那位歌剧演唱家巧妙地进行了调音。
ornament
n.装饰物；装修(decoration, embellishment)
refine
vt.精炼，精制；使文雅高尚
He needs to refine his style of writing.
他需要改进他的写作风格。
reinforce
vt.加强，加固(increase, strengthen)
The Congress passed a bill on reinforcing information technology in the coming decade.
国会通过了在未来十年加强信息技术的法案。
renovate
vt.革新(renew, restore)
balk
vt.妨碍(block, hinder, stall)
His plan was balked.
他的计划被搁浅了。
barricade
n.障碍物(barrier, impediment)
The students erected a barricade on campus as a protest.
学生们在校园里竖起了路障以示抗议。
barrier
n.棚栏；屏障，障碍(obstacle, block, barricade)
The barrier between the desks gave both workers some privacy.
两张桌子之间的隔板给了工人们一些隐私。
block
n./vt.阻碍(hinder, obstruct)
The boy has a mental block about spelling.
这个男孩对拼写有一种心理阻隔。
clog
vt.阻碍(block, jam)
The accident clogged the highway and caused a traffic jam.
事故堵塞了公路，造成了交通堵塞。
conciliatory
adj.善于调解的(reconciling)
One of the diplomats made a few conciliatory suggestions that helped bring about a truce.
其中一名外交官提出了一些和解建议，促成了停战。