room可數還是不可數

　　There's room for three people in the back.

　　后排有可容三人的空位。

　　There's room for three people in back.

　　后排有可容三人的空位。

　　There is still room for improvement in your work.

　　你的工作尚有改進的余地。

　　There's room for one more at the table.

　　這張桌子還有一個人的位置。

　　There was room for 20 people at the outside.

　　最多只能容納20個人。