I woke up in the middle of the night and could hear a tapping on the window.
我半夜醒来，听到轻敲窗户的声音。
Charging electric vehicles at night generates less ozone than tapping into the grid during the daytime. Karen Hopkin reports.
根据卡伦·霍普金的报告，在夜间为电动车充电能比白天少排放臭氧。
It prowls at night, tapping its finger rapidly against tree branches to listen for hollowed-out pockets in the wood that hold grubs.
它在夜晚游走，用手指迅速敲击树木来倾听镂空的树洞里是否有蛴螬。
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