It was beginning to cloud over a little.天空开始有一点多云。
Her arrival cast a cloud over the party.
clear up (天气)变晴；(脸色)开朗起来：
It looks as though it might clear up.
Her face cleared up when she read the letter.
brighten up 放晴
It should brighten up in the afternoon.
The consensus among the world’s scientists is that the world is likely to warm up over the next decades.
He is too excited; we must do something to make him cool down.
The heavy spring rain has flooded out the ground floor of the hotel.
The office was flooded out with complaints.
Water poured down the wall from the roof.水从屋顶沿墙往下流。
The youngsters poured down the street to see the parading procession.
The football game was rained off yesterday and will be played on the following Saturday.
when this is blown over 当爱烟消云散 ; 当一切过后 ; 当这一切都平息 ; 当这些都如疾风吹过
be snowed in 被雪堵在。。。
Belt down: fall very heavily The rain was pelting down by the time we got to the top of the mountain.
If you belt down the road, you’ll catch your train.
Come on开始 As soon as we had left the shelter of the forest, the rain came on.
Hold off 雨没下下来Fortunately the snow held off until we had got sagely home.
Freeze up冻住了 It was very hard winter last year and many people had problems with pipes freezing up.
The sun breaks through the clouds
The sun beats down (太阳)直射，烤晒，火辣辣地照晒，强烈地照射下来(on):The sun beat down on our necks and backs.太阳直射在我们的脖子和背上。
the rain beats down大雨倾盆而下Lying in bed I could hear the rain beating down.
Clouds or fog rolls in 乌云密布大雾弥漫
Cloud or smoke blots outthe sun 遮蔽乌云蔽日
windows or glasses fog/mist/steam up 窗户或玻璃起雾了