lethargic

The cat became lethargic and had trouble breathing..这只猫整天昏睡而且呼吸困难。

The koala seemed to be asleep, and I wondered for the first time just how one went about startling such a lethargic creature..那只树熊似乎睡着了。 第一次干这活儿，我真不知怎么去惊吓一只昏睡的动物。

The organisers say they are also considering giving a prize to the slowest cell, since lethargic cells would be a boon for cancer therapy..主办方表示他们也在考虑颁一个奖给速度最慢的细胞，因为这种昏睡细胞也是癌症治疗的福音。