gruellingadj.
'ɡruəliŋ
中文adj. 折磨人的；繁重累人的；使人精疲力尽的\nn. 惩罚；痛打\nv. 累垮；惩罚（gruel的ing形式）
折磨人的；繁重累人的；使人精疲力尽的
n. 惩罚；痛打
v. 累垮；惩罚（gruel的ing形式）
词根词源
gruelling (adj.)also grueling, "exhausting, punishing," 1852, present participle adjective from gruel (v.) "to punish," from late 18c. slang get (or have) one\\'s gruel "receive one\\'s punishment," from gruel (n.).
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