轻描淡写的败笔
[qīng miáo dàn xiĕ de bài bĭ]
In calligraphy or painting, 'slight strokes of failure' means an attempt to gloss over a mistake easily. Here, it can mean understating one's faults, mishaps, or downplaying issues instead of addressing them head-on, reflecting a nonchalant attitude toward life challenges.