The maintenance team will roughen the lobby floor tiles so visitors don't slip in rain.

維修團隊會把大廳地磚表面磨粗，讓訪客雨天不會滑倒。

Please roughen the metal panels slightly before the supplier applies the protective coating next week.

下週供應商上保護塗層前，請先把金屬面板稍微磨粗。

Constant handling during shipping roughened the surface of the display cases we ordered.

運送過程中不斷搬動，使我們訂購的展示櫃表面變得粗糙。