punishing

1. ADJ A punishing schedule, activity, or experience requires a lot of physical effort and makes you very tired or weak. 繁重費(fèi)力的; 令人疲憊的

He claimed his punishing work schedule had made him resort to taking the drug. 他聲稱(chēng)，繁重的工作日程使他不得不服用葯物。