3 sentences

1. 他经由巴黎去了伦敦。

   tā jīng​yóu Bā​lí qù le Lún​dūn.

   He went to London via Paris.

   Source: Tatoeba

2. 这趟列车经由南京开往上海。

   zhè tàng liè​chē jīng​yóu Nán​jīng kāi​wǎng Shàng​hǎi.

   This train goes to Shanghai via Nanjing.

   Source: Dong Chinese Dictionary

3. 他是经由老教授引进才进入该研究所工作的。

   tā shì jīng​yóu lǎo jiào​shòu yǐn​jìn cái jìn​rù gāi yán​jiū​suǒ gōng​zuò de.

   He joined the research institute through an introduction by an old professor.

   Source: Dong Chinese Dictionary