按照产品生命周期理论，外国厂商开始模仿或引进先进技术，并从事该产品的生产是处于产品生命周期的()。

特殊贸笏体系又称为()。

若出口贸易总额与进口贸易总额相等，则称为()。

---You could always put the decision off a little bit longer.

---_____ If I leave it much longer I might miss my chance.

---I left my handbag on the train, but luckily someone gave it to a railway official.

---How unbelievable to get it back! I mean, someone ______ it.

It sounds like something is wrong with the car ’s engine. , we ’d better take it to the garage immediately.

We’d better discuss everything _______ before we work out the plan.

Recently a survey _______ prices of the same goods in two different supermarkets has caused heated debate among citizens.

— You look upset. What ’s the matter.

— I had my proposal _______ again.

— Linda didn ’t invite us to the party.

— ______? I don ’t care.