once-enthusiastic
definitions
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adjective
Having previously been characterized by great passion, excitement, or eagerness, but no longer possessing those qualities.zh: 曾经热情的
examples
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His once-enthusiastic scientific ambition had transformed into a profound existential dread, as the consequences of his reckless experimentation became apparent.
他曾经热情的科学雄心已转化为深刻的存在主义恐惧,因为他鲁莽实验的后果变得显而易见。