2 sentences for 了断 (liǎo​duàn)

1. 他在绝望中选择了自我了断，结束了年轻的生命。

   tā zài jué​wàng zhōng xuǎn​zé le zì​wǒ liǎo​duàn, jié​shù le nián​qīng de shēng​mìng.

   In despair, he chose to end his own life, cutting short his young life.

   Source: Dong Chinese Dictionary

2. 既然双方都有意和解，我们就尽快把这桩纠纷了断了吧。

   jì​rán shuāng​fāng dōu yǒu​yì hé​jiě, wǒ​men jiù jǐn​kuài bǎ zhè zhuāng jiū​fēn liǎo​duàn le ba.

   Since both parties intend to reconcile, let's settle this dispute as soon as possible.

   Source: Dong Chinese Dictionary