Usually a house is too expensive for the salary-earning class to buy.
通常房屋太贵,工薪阶层买不起。
I ought to keep cool.
我应该保持冷静。
When a student recently saw two workmen using a pneumatic drill outside his university, he immediately telephoned the police and informed them that two students dressed up as workmen were tearing up the road with a pneumatic drill.