lengthy

非常漫长

used to emphasize that something is very long

用于强调某事非常漫长

极其漫长

used to emphasize that something is exceptionally long

用于强调某事异常漫长

相对漫长

indicates that something is long in comparison to other things

表示与其他事物相比，某事是漫长的

相当漫长

indicates that something is quite long, but not excessively so

表示某事很长，但并非过分冗长

是漫长的

used to state that something takes a long time or is very long

用于说明某事耗时很长或篇幅很长