云由低变高一般有三种情况：一种是地方性对流云，积雨云由于对流减弱上部砧状部分脱离母体逐渐抬高消失，那是肯定无疑的好天气。另一种是早上有雾，日出后雾抬升变为层云、碎层云最后归于消散也是好天气。第三种就是原来由于天气系统影响，云由高变低，随着天气系统远离本地云层也由低变高，最后消散，因而也是好天气象征。总之不论那种情况，云的抬升过程是趋于消散的一种过程，下雨又紧密地跟云连系在一起，云在消散因而不会造成降水。所以云的抬高总是象征一种好天气。
但是如果在锋面附近锋区中有时由于云的厚薄不均，当厚的云移去薄的云移来看去亦似云在抬高，甚至会暂时出现蓝天，这种情况只是暂时的，不能看作云在抬高消失。
Time is money.一寸光阴一寸今。Time flies.日月如梭。Time stays not the fools leisure.时间不等闲逛的傻瓜。Time is life when the idle man kills ti
Dont ride the high horse.勿摆架子。A running horse needs no spur.奔马无需鞭策。The common horse is worst shod.公用之马，掌子最差。A horse may
1.A bird is known by its note, and a man by his talk.听音识鸟，闻言识人。2.The early bird catches the worm.早起的鸟儿有虫吃。3.Birds in the
友谊是人生中难得的财富，以下1、A friend to all is a friend to none-- 滥交者没有朋友。2、A friend in need is a friend indeed-- 患难朋友才是真朋友。3、A fait
haring the same sky, a total of a soil retaining.---同顶一片蓝天,共护一方水土Mother nature is good, also cold butcher.---大自然是善良的慈母,同
1.Kill two birds with one stone. 一箭双雕；一举两得。2.A bird in the hand is worth two in the bush. 双鸟在林不如一鸟在手。3.Birds of a feathe
1.Time flies. 时光易逝。2.Time is money. 一寸光阴一寸金。3.Time tries truth. 时间校验真理。4.Time will tell. 时间能说明问题。5.Time reveals(disclose
1. Time flies.时光易逝2. Time is money.一寸光阴一寸金。3. Time and tide wait for no man.岁月无情；岁月易逝；岁月不待人。4. Time tries all.时间检验一切。5.