def constructTitleFromDate(data, idxRow):
    """
    Construct title string from date string (e.g. "4/1/2020").
    """
    dateStr = data[idxRow]['Date']
    (monthStr, dateStr, yearStr) = dateStr.split('/')
    return "第{}天（{}年{}月{}日）".format(
        idxRow+1, yearStr, monthStr, dateStr)