prolong

过去式：prolonged

过去分词：prolonged

现在进行时：prolonging

词形变化：

名词: prolonger | 动词过去式: prolonged | 动词过去分词: prolonged | 动词现在分词: prolonging | 动词第三人称单数: prolongs |

同义词：

extend | lengthen | stretch | elongate | delay | protract | draw out | spin out | persist | amplify | aggrandize | drag out | out | drag | keep up | sustain | suspend | defer | postpone | put off |

反义词：

shorten |

词义辨析：

同义:

vt.延长; 延伸; 拖延

extend

stretch

lengthen

elongate

drag out

同义参见:

amplify

aggrandize

反义:

vt.拉长; 拖延

shorten

curtail