v. become pale and sickly
s. lacking vitality as from weariness or illness or unhappiness
a. 苍白的, 无血色的, 病态的, 暗淡的
v. (使)变苍白
[计] 广域网
1. The light in the room began to wan as the sun set.
随着太阳落山，房间里的光线开始减弱。
2. Her enthusiasm for the project began to wan after several setbacks.
在经历了几次挫折后，她对这个项目的热情开始减退。
3. The wan moon cast a soft glow over the landscape.
微弱的月光在景观上洒下柔和的光辉。