秋末夏初
demonstrate vt 。 & i 。有多个意思 演示 How could you demonstrate the world is round ? The saleman demonstrated the new washing-machine, showed how it was used, 表示出(情绪、同情)、示威 The workers marched though the streets whith flags and banners to against the rising cost of living。 没有 “请愿” 的解释。另查到有“请愿”意思的字为 “petition n。, vt。& i,供你参考。
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demonstrate .证明;说明;(游行)示威;演示变形:第三人称单数 demonstrates 过去式 demonstrated 过去分词 demonstrated 现在分词 demonstrating
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