a lack of

• 缺少

a lack of的用法和样例：

例句

1. The main impediment to growth was a lack of capital.
   影响发展的主要障碍是缺乏资本。
2. Stress and tiredness often result in a lack of concentration.
   紧张和疲劳常使人精神不集中。
3. Her decision seems to show a lack of political judgment.
   她的决定似乎显示出缺乏政治判断力。
4. Her decision seems to show a lack of political judgement.
   她的决定似乎显示出缺乏政治判断力。
5. If air weren't admitted into the bell jar, the electric bell in the bell jar would not ring because of a lack of a medium.
   如果我们不让空气进入铃罩，铃罩中的电铃一定会因缺少介质而不响了。
6. Dejected because of a lack of companionship.
   寂寞的由于缺少伙伴而沮丧的