我不会告发的.I won't spill the beans.对他要多加防备. 他肯定会去告发的.Guard against him. He is bound to tell.另外有些被告发的人起先供认自己是基督徒, 后来又否认.Others who were named by the informer at first confessed themselves Christians, and then denied it....

“告发的”的英语可以翻译为：[法] accusatory ...