A state of sluggishness, inactivity, and apathy.
无精打采, 呆滞懒散, 无生气, 冷漠的状态
The general appearance of sluggishness alarmed his friends.
那种呆滞的样子吓坏了他的朋友们。
The primary reason for such sluggishness is the cost of fuel.
这种速度上停滞的主要原因是燃料的成本。
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