change course

词形变化：

动词过去式: changed | 动词过去分词: changed | 动词现在分词: changing | 动词第三人称单数: changes |

同义词：

alter | vary | modify | replace | substitute | cash | exchange | shift | revolution | convert | money | deviate | transform | alteration | transfer | modification | switch | turn | revolutionize | variety | swap | change over | variation | transformation | loose change | novelty | amend | adjust | move | adapt | innovate | transition | correction | interchange | translation | veer | tide | development | adaptation | revision | evolution | differentiate | qualification | revise | transplant | relief | reform | deepen | commute |

反义词：

stay | settle | fix | permanence |