Going to the unemployment office and having to wait there for hours is a soul-destroying experience.到职业介绍所去并在那里等上数小时会令人感到非常沮丧。The statistics to prove or disprove his hypothesis will take years to collect.收集数据来证明他的假设是否成立要花上数年的时间。We're in the same class for math.我们在同一个班里上数学课。I had to have extra tuition in maths.我不得不上数学补习课。