This is from the feedwordpress.php file:
# Syndicated items are generally received in output-ready (X)HTML and
# should not be folded, crumpled, mutilated, or spindled by WordPress
# formatting filters. But we don't want to interfere with filters for
# any locally-authored posts, either.
#
# What WordPress should really have is a way for upstream filters to
# stop downstream filters from running at all. Since it doesn't, and
# since a downstream filter can't access the original copy of the text
# that is being filtered, what we will do here is (1) save a copy of the
# original text upstream, before any other filters run, and then (2)
# retrieve that copy downstream, after all the other filters run, *if*
# this is a syndicated post
add_filter('the_content', 'feedwordpress_preserve_syndicated_content', -10000);
add_filter('the_content', 'feedwordpress_restore_syndicated_content', 10000);
This bypasses all other filters that use the the_content hook, so it skips over the translation plugin.
You can try this-- in the file ajaxtranslation.php change line 274 from:
add_filter( 'the_content', array( &$this, 'processContent' ), 50 );
to:
add_filter( 'the_content', array( &$this, 'processContent' ), 10005 );