背1遍就想上考场四级单词12

sacrifice
Historical changes would not happen without heroes making the necessary sacrifices.
certificate
I am back in school taking courses for a teacher's certificate.
efficiency
In order to raise the efficiency of the water supply, measures should be taken to increase the sense of responsibility of agencies.
superficial
We will get back to more controls, the golden rules, more supervision, getting rid of superficial things.
artificial
The new models of artificial hearts are expected to be equipped with an external power source.
manufacture
Back in 1984 we discovered that most manufactured products for decoration weren't designed for indoor use.
feasible
We have to analyze the situation to see if it is feasible,it is recommendable, it is realistic or not.
Cupboard
A: Where do I place these dishes?
B: Place them into the cupboard.