她是个每天抽两包烟的老烟民，最近开始咳嗽不止。

As a ___two-pack-a-day smoker, she recently developed a persistent cough.

照顾双胞胎就像每天抽两包烟一样令人精疲力尽。

Taking care of twins feels like a ___two-pack-a-day level of exhaustion.