she started to pound
她开始敲打
以上为机器翻译结果，长、整句建议使用 人工翻译 。
She gazed at the sheets of music for a long moment, then started to pound on the keys with a seriousness that took Hanfeng by surprise.
她凝神注视乐谱好久，然后开始一本正经地敲击琴键，让瀚峰感到有点惊奇。
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