这辆老式卡车油耗很高，是一辆典型的油老虎。

This old truck is a typical ___gas-guzzling vehicle with poor fuel efficiency.

这款旧空调是个耗电大户，每月电费高得惊人。

This old air conditioner is a ___gas-guzzling appliance, making our electricity bills shockingly high every month.