The city of Zion is spoken of as if it were a woman. In Lamentations, Zion and Jerusalem are names used to refer to the same city. (See: [[rc://en/ta/man/translate/figs-personification]])
This speaks of everything beautiful in Zion being destroyed as if "beauty" were a person that left Zion. Alternate translation: "Everything that was beautiful about the daughter of Zion is destroyed"
This speaks of Zion's princes having nothing to eat like deer that cannot find grass to eat. Alternate translation: "Her princes are starving, they are like deer that cannot find grass to eat" (See: [[rc://en/ta/man/translate/figs-simile]])