与熟词“compelling”（形容词，引人注目的/有说服力的）一起记。只需在形容词后加上“-ly”就变成了副词。造句：“The argument was compelling.（这个论点很有说服力。）” → “He argued compellingly.（他论证得非常令人信服。）”
例句
She spoke so compellingly about the need for conservation that everyone in the audience was moved to take action.（她关于保护必要性的演讲如此有说服力，以至于在场的每个人都感动得想要采取行动。）