furniture是不可数名词，其意思是家具，表示一件家具时，需用“a piece of furniture”来表达。其他常见表达有：garden furniture花园家具、office furniture办公室家具、part of the furniture见惯了的人（或东西）或者存在已久故不为人注意的人等。

相关例句：

1、We'll want more furniture for the new office.

我们的新办公室需要添些家具。

2、We need to buy some new furniture.

我们需要买一些新家具。

3、Modern furniture is a little too severe for my taste.

现代家具有点过于简朴，我不大喜欢。

4、I worked there so long that I became part of the furniture.

我在那里工作得太久，都不为人注意了。

5、The furniture comes complete with tools and instructions for assembly.

这件家具备有组装工具和说明书。