它们很有可能被用药物控制，或者被严厉训练，或者被拔掉牙齿，去确保他们在游客面前可以很“听话”。

They may be drugged, harshly trained or have had their teeth removed to ensure they ‘behave’ around tourists.

youdao

它们很有可能被用药物控制，或者被严厉训练，或者被拔掉牙齿，去确保他们在游客面前可以很“听话”。

They may be drugged, harshly trained or have had their teeth removed to ensure they ‘behave’ around tourists.

youdao