we all have experienced days when everythings goes wrong.a day may beins well enough,but suddenly everything seems to get out of control.what invariably happens is that a great number of things choose to go wrong at pricisely at the same moment.it is as if a single an important event set up a chain of reactions.let us suppose that you are preparing a meal and keep an eye on the baby at the same time .the telephong rings and this marks the prelude to an unforeseen serise of catastrophes.while you are on the phone,the baby pulls the tablecloth off the table ...诶呀我的嘛 累死我了 不行你得先把分给我 这太长了 我担心等我打完 ..你已经采纳完别人意见了~那我就会很不开心...