lengthen

lengthenlengthenD.J.:[ˈleŋθən]K.K.:[ˈlɛŋkθən, ˈlɛŋ-]vt. & vi.1.■(时间或空间)延长, 伸长In summer, the daylight hour lengthens.夏天, 白天的时间长。

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lengthen['leŋθən]vt.1.■放长，加长；使变长；使伸长；使延长：Open-air exercise undoubtedly have lengthened the old man's life.户外运动无疑延长了老人的寿命。2.■【语音学】拖长(元音)音长vi.1.■变长，延伸，长起来：The meeting lengthened to 5 hours.会议延长到5个小时。近义词extend

lengthenlengthen[ˈleŋθən]vt.1.■延长, 伸长, 拉长lengthen a vowel【语】拖长元音

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词性变化lengthen[ˈleŋθən]vi.1.■变长; 延伸; 转为(into)Summer lengthens (out) into autumn.夏去秋来。The shadows lengthen.天色渐黑; 年纪渐老; 死期已近。

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继承用法lengtheningn.