The project has demanded considerable investment of time and effort.

　　該項目已讓我們投入了相當多的時間和精力。

　　We need to make a concerted effort to finish on time.

　　我們需要通力合作才能按時完成。

　　The local clubs are making every effort to interest more young people.

　　地方俱樂部正在盡一切努力來吸引更多的年輕人。

　　She made a visible effort to control her anger.

　　看得出她竭力控制自己不發(fā)火。