tatamis

In order to keep the tatamis clean for sitting upon, the Japanese take their shoes off.

为了使榻榻米干干净净，以便让人们坐在上面。日本人要把他们的鞋子脱掉。

This is because the floors are covered with straw mats which are called tatamis.

这是因为在日本人房子的地板上覆盖着称为榻榻米的草席。