相关单词同義詞useful, beneficial, advantageous, conducive, assistant, 近義詞 considerate, friendly, timely, kind, useful反義詞futile, useless, worthless臨近詞helpless, helper, helpfully, helpful in, helpful to, helpfulness, helpful tips, helpful hint, helpful order, helpful notes, helpful effect, helpful insect相似詞help (sb) out, help desk, help screen, helper, helping, helping verb, helpless, helpline, 返回 helpful