When trying to write Kanji, you would use an IME, meaning you type the word as you would say it, using latin letters and a little input box opens up, showing you possible matches in your desired language (for me, Japanese). Normally you would select one of the choices by hitting enter, but if enter is also set as the translation shortcut, then the key activation is swallowed and the IME input field stays open.
Ideally the IME would first get to input the selection into the text field, before the translation would be triggered. That could be difficult to ensure, though.
When trying to write Kanji, you would use an IME, meaning you type the word as you would say it, using latin letters and a little input box opens up, showing you possible matches in your desired language (for me, Japanese). Normally you would select one of the choices by hitting enter, but if enter is also set as the translation shortcut, then the key activation is swallowed and the IME input field stays open.
Ideally the IME would first get to input the selection into the text field, before the translation would be triggered. That could be difficult to ensure, though.