half-heartedadj.
'hæf'ha:tid, 'ha:f-
中文adj. 半心半意的；缺乏热情的
词根词源
half-hearted (adj.)also halfhearted, "showing little enthusiasm," early 15c.; see half + hearted. Related: halfheartedly; halfheartedness. English in 17c. also had half-headed "stupid."
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