"I pke the pretty flowers in the garden."
This sentence is a simple expression of fondness for the attractive blooms in a garden. "Flowers" is a general term used to describe the reproductive structures of plants that are typically colorful and fragrant.
Examples:
"The roses in my neighbor's garden are always so beautiful."
(我邻居的花园里的玫瑰总是那么美丽。)
"I always feel relaxed when I walk through a garden full of flowers."
(当我走过一个满是花的花园时，我总是感到放松。)
Note: There is no specific origin for the usage of the word "flowers" in this context, as it is a common term used worldwide.