volunteering

词形变化：

动词过去式: volunteered | 动词过去分词: volunteered | 动词现在分词: volunteering | 动词第三人称单数: volunteers |

同义词：

offer | come forward | agree | step up | undertake | give | tell | acquaint | advise | inform | helper | candy striper | come | forward | unpaid | voluntary | Tennessean | propose | present |

反义词：

draftee |