lacked
参考词典中lacked的常规释义：
基本释义
- [ lacking ]的过去式;[ lack ]的过去式
参考例句
- A noticeable lack of friendliness.
明显的缺少友好 - Dejected because of a lack of companionship.
寂寞的由于缺少伙伴而沮丧的 - One who lacks force of character;a weakling.
弱者缺乏性格力量的人;孱弱的人 - His difficulties issue from his lack of knowledge.
他的困难是知识贫乏造成的。 - His eyes were bloodshot from lack of sleep.
他因缺少睡眠而两眼通红.
- A noticeable lack of friendliness.
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