confound confuse

confound [kən'faund] fus =found
to confuse and surprise sb
formal if a problem etc confounds you, you cannot understand it or solve it
(old-fashioned) to defeat an enemy
vt. 使混淆；使混乱;挫败

例句
Our clever tactics confounded our opponents.
我们的巧妙战术弄得对手不知所措。
Don't confound the means with the ends.
不要把手段和目的混淆起来。

耶鲁公开课 - 基础物理课程节选
You'll see enough things that will confound you, but right now I want to demonstrate a simple paradigm of what it means to know the present and what it means to say this is what the future behavior will be.

你将会发现很多物理问题会让你困扰,而眼下我会举一个例子来阐述,什么叫了解现在,什么又叫预测未来

convince vinc= vic victor

convince [kən'vins]
to make someone feel certain that something is true
to persuade someone to do something
vt. 说服；使确信，使信服

例句
He convinced me of the difficulty of the work.
他使我确信这件工作的艰巨性。
I was convinced that he knew the truth.
我确信他知道事实。

convict [kən'vikt]to overcome in argument
to prove or officially announce that someone is guilty of a crime after a trial in a law court
someone who has been proved to be guilty of a crime and sent to prison
vt. 证明…有罪；宣告…有罪
n. 罪犯;囚犯，服刑的人

例句
The judge convicted him of robbery.
法官判他犯有抢劫罪。
The convicts complained bitterly about prison conditions.
囚犯们对监狱的条件强烈不满。

vanguard advance +guard
vanguard ['vænɡɑ:d]
the leaders of a movement in society, for example in politics, art, industry, etc:
the part of an army, etc. that is at the front when moving forward to attack the enemy:
n. 先锋；前锋；先驱；领导者

也可作短语
advance guard
1.【军事】前卫；先遣(或先头、先驱)部队
2.[比喻]先锋，先驱，前驱
3.(文艺创作方面的)先锋派

board oar

oar[ɔ:]
a long pole with a flat blade at one end that is used to move a boat through water
To propel with or as if with oars or an oar.
To move forward by or as if by rowing
n. 桨；橹；桨手
v划（船）； 划行

例句
He pulled on the oars to make the boat go faster.
他用力划桨使船行得更快
They oared strongly across the finish line.
他们奋力划过终点线。