wane

[wein]

n.衰落, 亏缺, 变弱
v.变小, 亏缺, 呈下弦

例句与用法：

The empire was on the wane after its period of prosperity.

帝国经过全盛以后逐渐衰落。

The moon waxes and wanes every month.

月亮每个月都有盈亏。

By now the power of the Roman Empire was on the wane.

到这时，罗马帝国已日益衰败。

词形变化：

动词过去式: waned | 动词过去分词: waned | 动词现在分词: waning | 动词第三人称单数: wanes |

详细释义：

vi.

1. (月)亏, 缺

Don't be sad. The moon will become full after it wanes.

不要伤感。月缺以后会有满月。

2. 变暗淡; 变小; 减少

My interest in the problem waned.

我对那个问题的兴趣减弱了。

3. 衰落; 没落; 消逝

When did the empire begin to wane?

那个帝国何时开始衰落的?

4. 退潮

n.[U]

1. 月亏; 月亏期

The moon is on the wane.

月亮渐亏。

2. 衰退; 衰退期

His fortune is on the wane.

他命运不济了。

短语词组：

on the wane

1. 日益衰落

The sick man's strength is on the wane.

病人的体力越来越弱。

wax and wane

1. 盈亏

The moon waxes and wanes every month.

月亮月月盈亏。