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[00:12.17]sluggish adj.怠惰的(lethargic listless slow)
[00:15.93]The snake was sluggish because of the cold weather
[00:21.43]indolent adj.懒惰的(lazy slothful)
[00:25.55]inertia n.惯性 惰性(laziness indolence)
[00:29.63]slug n.慢吞吞的人
[00:33.83]sloth n.怠惰 懒惰
[00:38.20]slothful adj.偷懒的