lengthy

形容词 lengthy:

1. relatively long in duration; tediously protracted
   同义词：drawn-out, extended, prolonged, protracted

1. He was wont to give lengthy speeches.
   他惯於做长篇大论的演说。
2. I was subjected to a lengthy inquisition into the state of my marriage and the size of my bank balance.
   有关方面就我的婚姻状况以及银行存款余额对我进行了详细的调查。
3. After much discussion/several lengthy discussions they decided to accept our offer.
   经过反覆讨论[多次长时间的讨论]，他们决定接受我们开的价。
4. The problem was solved only after several lengthy discussions.
   那个问题几经长时间的讨论才得以解决。
5. I was subjected to a lengthy inquisition into the state of my bank balance.
   有关方面就我的银行存款余额对我进行了详细的调查。
6. Being or taking a roundabout, lengthy course.
   曲折的，迂回的处于或采用迂回的、冗长的途径

length.y

adj.（形容词）
length.i.er,length.i.est
Of considerable length, especially in time; extended:
长久的，漫长的：拥有相当长度的，尤指在时间上；延长的：
例句：
a lengthy convalescence.
漫长的康复期

Tediously long; drawn-out:
冗长乏味的；持续很久的：
例句：
a lengthy explanation.
冗长乏味的讲解

【引伸】
length.ily
adv.（副词）
length.iness
n.（名词）