A bilingual product should not treat one language as a smaller or secondary version of the other. The layout, content order, typography, and examples all need to support the people using them.
Translation is a design input
A sentence that works in one language may need a different structure or shorter explanation in another. The interface should be reviewed with the actual content, not only with placeholder text.
Give each language room
Flexible layouts, readable type, and content that is not forced into a narrow visual box help both languages remain clear. The goal is not to make the screens identical; it is to make them equally usable.
Test with real users
The most useful review happens with people who read the language every day. Their feedback can reveal unclear labels, unexpected reading patterns, and content that technically translated but did not communicate.