We know that you are leading exporters of coal and you can provide the quantity we need.
我们知道贵方是主要煤炭出口商,能满足我们的需求量。
In the 1970s, computers were common enough, but only in big business, government departments, and large organizations.
在70年代,计算机已经相当普及了,但只用在大公司,政府部门和大的组织之中,