to be nervous, tense, or easily upset
感到紧张，焦虑或容易被激怒 (gan dao jin zhang, jiao lv huo rong yi bei ji nu)
"She’s been on edge all day waiting for the results."
"她整天都在焦虑地等待结果。" (Ta zheng tian dou zai **jiao lv** de deng dai jie guo.)
to treat someone the same bad way they treated others
to have control or advantage over someone
a dangerous person pretending to be harmless
an idea or invention created by someone
sometimes it's okay to ignore rules
to be very familiar with something; to have a thorough under...
