例句：Is it necessary to buy so many toys for him as birthday gifts?
翻譯：買給他這麼多玩具當生日禮物有必要嗎？
變化
● 原形：necessary [ˋnɛsə͵sɛrɪ]
● 比較級：more necessary [mor ˋnɛsə͵sɛrɪ]
● 最高級：most necessary [most ˋnɛsə͵sɛrɪ]