形容词辐射的; 容光焕发的; 照耀的

名词光点; [天]流星群的辐射点

1. 容光焕发的;喜气洋洋的
Someone who is radiant is so happy that their happiness shows in their face.

e.g. Kathy smiled at her daughter's radiant face...
凯茜对着女儿容光焕发的面孔微笑着。
e.g. On her wedding day the bride looked truly radiant.
婚礼那天，新娘看上去真是光彩照人。

不及物动词叹气; 悲叹，悲鸣

及物动词叹气地说

名词叹气，叹气声

1. 叹气;叹息;深呼气
When you sigh, you let out a deep breath, as a way of expressing feelings such as disappointment, tiredness, or pleasure.

e.g. Michael sighed wearily...
迈克尔疲惫地叹了口气。
e.g. Roberta sighed with relief...
罗伯塔松了口气。

2. 叹着气说;叹息道
If you sigh something, you say it with a sigh.

e.g. 'Oh, sorry. I forgot.' — 'Everyone forgets,' the girl sighed.
“哦，对不起，我忘了。”——“每个人都有忘事的时候，”那女孩叹着气说道。

3. (风)发出叹息般的声音，悲鸣
If the wind sighs through a place, it moves through the place with a sound like a sigh.

e.g. The wind sighed through the valley.
风在山谷里呼啸而过。

4. 松了口气;如释重负
If people breathe or heave a sigh of relief, they feel happy that something unpleasant has not happened or is no longer happening.

e.g. There was a big sigh of relief once the economic reform plan was agreed...
经济改革计划一获批准，人们都大大舒了一口气。
e.g. There was an audible sigh of relief in Washington when the foreign ministers decided to postpone the meeting.
各国外长决定推迟会议后，华盛顿如释重负。

形容词污浊的; 不流动的，停滞的; 不景气的; 迟钝的，呆笨的

1. 停滞不前的;不发展的;无变化的
If something such as a business or society is stagnant, there is little activity or change.

e.g. He is seeking advice on how to revive the stagnant economy...
他正在就如何振兴低迷的经济征求意见。
e.g. Mass movements are often a factor in the awakening and renovation of stagnant societies.
群众性运动经常是能唤醒和振兴停滞不前的社会的一个因素。

2. (水)不流动而污浊的
Stagnant water is not flowing, and therefore often smells unpleasant and is dirty.

名词红色的，雾浊

动词脸红( blush的现在分词 )