lengthen

1. V-T/V-I When something lengthens or when you lengthen it, it increases in length. 使變長; 變長

The evening shadows were lengthening. 傍晚的影子正在變長。

2. V-T/V-I When something lengthens or when you lengthen it, it lasts for a longer time than it did previously. 使延長; 延長

Vacations have lengthened and the work week has shortened. 假期延長了，工作周變短了。