to nourish a viper in one's bosom
01
恩をあだで返される人を育てる, 裏切る相手を助ける
to support or take care of someone who turns out to be untrustworthy or harmful, despite one's good intentions
慣用句
例
He nourished a viper in his bosom by trusting that dishonest partner.
あの不誠実な相手を信じたことで、恩をあだで返される人を育てた。



























