The second half of this sentence is "It's hard to give up the taste of life."

The sentence "Sour, sweet, bitter, spicy and salty, the taste of life is difficult to give up" expresses that the different tastes in life (sour, sweet, bitter, spicy and salty) bring people experiences and feelings that cannot be easily given up. Each flavor represents a different emotion and experience, including sweet moments, bitter challenges, sour loss, spicy passion, and salty memories.