be pessimistic and world-weary的用法和样例：
例句
- A growing amount of research shows a pessimistic outlook can take a huge toll on your health.
越来越多的调查显示，悲观厌世会大大有损于你的身体健康。 - Axolotls sudden death rises to the philosophic layer, which achieves the graciousness and grace to all flesh, as well as a mood of pessimism and world-weariness.
蝾螈的偶然之死则上升到对死亡的哲学思考，达到了对万物和众生的亲近感和慈悲心，但也带来一种悲观厌世的情绪。
