n.

1. 奴隶；奴仆[C]
2. 奴隶般受支配的人；沉湎而不能自拔的人[C][（+to/of）]
   He is a thrall to drink.

   他极贪杯。

3. 奴役；束缚[U][（+to）]
   The story held me in thrall.

   这故事把我吸引住了。

n.

1. the state of being in another's power:
   she was in thrall to her abusive husband.
2. archaic a slave, servant, or captive.