These terms are used interchangeably.

这些词语互换着使用。

These terms are often used imprecisely and interchangeably.

这些术语的使用常常不够精确，而且常常交互使用。

These expressions are often used interchangeably, but they do have different meanings.

这些表达法经常可以互换使用，但它们的确有不同的含义。

These terms can be used interchangeably.

这些术语可以交替使用。

AspectWerkz allows both forms to be used interchangeably.

AspectWerkz允许互换地使用这两种形式。