This study represents a major expenditure of time and effort. 这项研究意味着要耗费大量的'时间和精力。 The work was done with the minimum amount of effort. 做这项工作没费什么劲。 He made a concentrated effort to finish the work on time. 他全力以赴以按时完成这项工作。 The project has demanded considerable investment of time and effort. 该项目已让我们投入了相当多的时间和精力。 We need to make a concerted effort to finish on time. 我们需要通力合作才能按时完成。 上一篇：10个pect后缀的单词 下一篇：sounds后面加什么词性的词 |