As our typewriters are made of light and hard alloy they are both portable and endurable.

因为我们的打字机是由轻而坚固的合成制成，所以轻便携带又很耐用。

youdao

As our typewriters are made of light and hard alloy they are both portable and endurable.

因为我们的打字机是由轻而坚固的合成制成，所以轻便携带又很耐用。

youdao