impact
n. 影响, 作用 ；冲击(力), 碰撞
vt. & vi. 对某事物有影响
辨析：impact、effect、influnce+on\upon
此类词是动词名词，有谁影响谁的问题，on\upon之后跟影响的对象B，而谁影响B ，则有of引出。如：effect of A on B：A对B的影响。
1.The computer had made a great impact on modern life.
计算机对现代生活产生了巨大的影响。
2.These costs will impact on our profitability.
这些费用会影响到我们的利润。
3.The cup hit the wall and broke on impact.
杯子碰到墙上，撞了个粉碎。
implication
n. 卷入, 牵连 ；含义, 暗示, 暗指
1.We heard of his implication in a conspiracy.
我们听说他被牵连在叛乱案中。
2.What are the implications of this statement?
这一声明的含义是什么?
3.He smiled, with the implication that he didn't believe me.
他微笑了，暗示着不相信我。
indicate
vt. 标示, 指示, 指出 ；象征; 表明或暗示…的可能性
1.She indicated where I should go.
她指出了我该去的地方。
2.The snow indicates the coming of winter.
这场雪表明冬天来临。
invention
n. 发明, 创造；发明物； 捏造, 虚构
1.Necessity is the mother of invention.
需要是发明之母。
2.It's a most useful invention.
这是一项极其有用的发明。
3.The whole story is a pure invention.
这一切纯粹是捏造。
invest
vt. & vi. 投资; 花费
vt. 授予
比较：(1)invest...in sth.
spend...on sth.\in doing sth.
(2)invest...with 授予某人某物
1.The best time to invest is now.
现在是投资的最佳时机。
2.He invested his lawyer with complete power to act for him.
他让律师全权代办。
