Zion, meaning here the city of Jerusalem, is spoken of as if it were a woman with her daughters. AT: "the women of Zion" (See: [[rc://en/ta/man/translate/figs-metaphor]])
Here "their eyes" represents how the women look at men. AT: "try to impress men with the way they look at them" (See: [[rc://en/ta/man/translate/figs-metonymy]])