on the wane

从文章PHP, Once The Web's Favorite Programming Language, Is On The Wane看到on the wane的说法.

becoming less; fading away. Her influence in on the wane, but she is still the boss.

有兴趣可以看看上面这篇文章的评论区大家的撕逼:D 从数据上来看PHP还是当今的主流.

查了一下才知道wane就是衰退(期)的意思... 词汇量捉急.

wane:
vi: 衰落; （月）亏，缺; 结束; 变暗淡
n: 衰退; 衰退期; 月亏期; 缺角方木

1. The moon is on the wane.
   月亮渐亏.
2. When did the empire begin to wane?
   那个帝国何时开始衰落的?
3. Her enthusiasm for him was beginning to wane.
   她对他的热情在开始减退.

From iciba - wane.