Eric sang in a gentle, highly expressive
croon.
埃里克用轻柔而极富表情的音调哼唱着。
Tom stroked her hair while he
crooned to her.
汤姆一边抚摸着她的头发，一边对她低声哼唱。
As a legion of fans flocked to the Xi'an Olympic Sports Center to hear Wang Junkai, Wang Yuan and Yi Yangqianxi croon onstage, revenue from concert ticket sales reached 35.76 million yuan ($4.96 million), which in turn drove the city's tourism revenue to 416 million yuan, data from the Xi'an authority showed.
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