How can translations 'inherit' CCK values of the node in the default language
I've found a solution that works for my needs. There's probably a better way:

Modules used: Views Bulk Operations, Node Clone, Views Bonus Pack, Language Assign, Feeds

Assumptions: you have a CSV file or MySQL database with translations of your pages in another language. It's not necessarily to have this - it just makes things faster.


Install the Node Clone module and Views Bulk Operations (VBO) module. Add this patch to expose the Clone feature to VBO.
Clone the nodes you need in VBO. This will append 'Clone of' to the title of each cloned node. 
Set the language of the new nodes, again using VBO and Language Assign.
Install the Views Bonus Pack to get CSV export functionality. Create a View that uses the CSV Feed style, and add the title field and any other fields you need translated. Add a filter that displays only fields where the title starts with 'Clone'.
Export the nodes using the View created in the previous step.
Now, you can either manually add your translations to the CSV file by replacing them with the relevant translations, or you can use your new CSV as a reference file to add the right node ids to your original CSV with the translations. Basically, at the end of it, you have a file like this:


-->

| Node ID | Original Title | Chinese Title  | Body         | Some other field |
| 234     | Hey You        | ????           | Blah, blah   | Blah ...         |



Now, you can install the Feeds module, override the default CSV import, changing only the mapping and content type to use. Map the field 'Node ID' to the node ID (or the original title to the node title), and change the Update options to 'Update node.' 
Go to http://yoursite.com/import. Do your import. I did, and now I'm happier.