punishing基本解释
adj.艰难持久的;精疲力尽的
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adj.艰难持久的;精疲力尽的
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"the king imposed a punishing tax"
"worked their arduous way up the mining valley"
"a grueling campaign"
"hard labor"
"heavy work"
"heavy going"
"spent many laborious hours on the project"
"set a punishing pace"