1. Her hair became dry and lustreless after years of damage.
多年损伤后，她的头发变得干枯无光泽。

2. The old painting looked lustreless in the dim light.
这幅旧画在昏暗灯光下显得黯淡无光。

3. The metal surface was dull and lustreless after rusting.
生锈后金属表面变得暗淡无光。

4. His performance felt lustreless compared to earlier shows.
与之前的演出相比，他的表演显得缺乏光彩。

A: Why does your hair look so lustreless?
A：你的头发为什么看起来这么没有光泽？

B: I think it’s because of the dry weather.
B：我想是因为天气太干燥了。

1) 描述物体失去光泽、变得暗淡
2) 比喻缺乏活力或吸引力
3) 用于形容外观或表现平淡无亮点
4) 常用于描述头发、金属或表面状态

1. 无光泽的；暗淡的

e.g. The jewels looked lustreless in the dusty box. 珠宝在布满灰尘的盒子里显得暗淡无光。

2. 缺乏活力或吸引力的

e.g. The report was lustreless and uninteresting. 这份报告枯燥乏味、毫无吸引力。

adjective

1. Having no shine, brightness, or vitality; dull in appearance or effect.

Synonym: dull, dull-looking, matte