她以极大的热忱推动环保事业，招募了数百名志愿者。
She championed the environmental cause with an ardor that recruited hundreds of volunteers.
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解释
ardor 指对某项事业的热情投入和号召力。
She championed the environmental cause with an ardor that recruited hundreds of volunteers.
ardor 指对某项事业的热情投入和号召力。