Liu believes that animals exhibit their behavior most vividly only in their natural surroundings. If you don't take that as your objective, you might as well go to the zoo for your subject matter and avoid injuring harmless creatures.
劉燕明以為，動物行為只有在自然環境中才能表現得最淋漓盡致，若不以此為目標，不如到動物園取材就好，也可避免傷害無辜動物。