complementary vs. complimentary
辨析：两个形容词一个字母之差，非常容易弄混。前者的含义是“互补、补充的”，一般体现两件事物互为支撑，并一同达到了完满的状态。后者是“称赞”的形容词形式，但一般在实际使用中说的是那些“附赠的”免费商品或服务。
例句：
The cold ice cream and hot rum sauce signify the complementary energies of yin and yang, female and male.
The complimentary steak dinner and all the drinks were fantastic.