1、
His heart was pitapatting wildly as he approached the stage to give his speech.
他走到讲台前发表演讲时，他的心劲飙升，快速跳动。
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2、
他躺在床上，试着入睡，听到雨声在窗户上轻轻敲打着。
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3、
The rain pitapatting rhythmically on the roof of the car as they drove through the storm.
他们驾车穿过暴风雨时，雨声如鼓点般有规律地敲打着车顶。
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