❶how; to no avail ❷helpless 无可～花落去，似曾相识燕归来。(晏殊《浣溪沙》)Deeply I sign for the fallen flowers in vain,Vaguely I remember the swallows come again.(Sand of Silk-washing Stream by Yan Shu)/民不畏死，～以死惧之？ (《老子》) The people fear not death,why threaten them with it?(Laozi)