The knife did not drop to the flagstone floor.

刀没有落到石板的地面上。

youdao

These are the minimum number of steps when laying flagstone by dry construction.

这些都是最低人数时铺设石板干施工步骤。

youdao

These are the minimum number of steps when laying flagstone by dry construction.

这些都是最低人数时铺设石板干施工步骤。

youdao