2 sentences

1. 裁判判定这颗球出界了。

   cái​pàn pàn​dìng zhè kē qiú chū​jiè le.

   The referee ruled that the ball was out of bounds.

   Source: Dong Chinese Dictionary

2. 这里的牧民放牧时有时会不小心出界。

   zhè​lǐ de mù​mín fàng​mù shí yǒu​shí huì bù xiǎo​xīn chū​jiè.

   The herdsmen here sometimes accidentally cross the boundary while grazing.

   Source: Dong Chinese Dictionary