shī / gōng / shí / bú / yào / duī / fàng / cái / liào / yǐ / miǎn / dǎng / zhù / dǎo / máng / zhuān

施工时不要堆放材料，以免挡住导盲砖。

Do not pile up materials during construction, or they may block the tactile paving tiles.