Cooperative activity is essential to effective community work.
要把社區(qū)工作做好，協(xié)作活動是必不可少的。
It is essential that we present a united front.
至關(guān)重要的是我們要表現(xiàn)得團結(jié)一致。
Good posture is essential when working at the computer.
用電腦工作時良好的姿勢極其重要。
The agreement is essential to spurring economic growth around the world.
這項協(xié)議對于促進世界經(jīng)濟的增長是至關(guān)重要的。
A degree is an essential prerequisite for employment at this level.
學(xué)位是做這級工作必備的先決條件。