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新东方-柯林斯雅思备考词典
lengthen
英 [ˈleŋθən]
[VERB]
lengthens , lengthening , lengthened
1. [I 不及物动词] 使变长 , 变长
When something lengthens or when you lengthen it, it increases in length.
双语例句
例：The evening shadows were lengthening.
黄昏时分的影子越来越长。
2. [I 不及物动词] 使延长 , 延长
When something lengthens or when you lengthen it, it lasts for a longer time than it did previously.
双语例句
例：Holidays have lengthened and the working week has shortened.
假期延长了，工作周变短了。