1、collision
碰撞;相撞
They were on their way to the Shropshire Union Canal when their van was involved in a collision with a car.
在去往什罗普郡联盟运河的路上，他们的小货车与一辆小车相撞。
I saw a head-on collision between two aeroplanes.
我看见两架飞机迎面相撞。
(不同文化或思想的)碰撞，冲突，抵触
It's the collision of disparate ideas that alters one's perspective.
是迥然不同的观点之间的碰撞改变了人们的看法。
The play represents the collision of three generations.
这部戏表现了三代人之间的矛盾冲突。

2、motivate
(尤指情绪)激发，激励，驱使
They are motivated by a need to achieve.
对成功的渴望激励着他们。
The crime was not politically motivated.
该犯罪行为没有政治动机。
使决心做;使决意做
How do you motivate people to work hard and efficiently?
你是怎样激励大家奋发高效地工作的？
Never let it be said that the manager doesn't know how to motivate his players.
绝对不要让人说这位主教练不知道如何激励他的队员。