他们吵架后，从此再也没有找过对方。

Tāmen chǎojià hòu, cóngcǐ zàiyě méiyǒu zhǎo guo duìfāng.

After they argued, they never contacted each other again.

从此以后，他再也没有回来过。

Cóngcǐ yǐhòu, tā zàiyě méiyǒu huílái guò.

From then on, he never came back.

从此我们成为了好朋友。

Cóngcǐ wǒmen chéngwéile hǎo péngyǒu.

From then on, we became good friends.