in one’s innermost feelings
心の奥で (kokoro no oku de)
"Deep down, she knew she was wrong."
"心の奥で、彼女は自分が間違っていると分かっていた。" (kokoro no oku de, kanojo wa jibun ga machigatte iru to wakatte ita)
someone who is very careful about spending money
to take on a large responsibility or burden
to continue progress on something
to use one's influence or connections to get things done
to join someone’s online activity or conversation uninvited
to make someone responsible for their actions