常見例句用作名詞 (n.)An increase in foreshock activity triggered the evacuation warning.前震活動的增加引發(fā)了疏散警報。In the Pacific Northwest, there is no evidence of foreshock activity for most historic earthquakes.在太平洋西北地區(qū),歷史上的大多數(shù)地震都沒有前震活動的證據(jù)。 返回 foreshock