to suddenly start crying
突然开始哭泣 (turan kaishi kuqi)
"She burst into tears after hearing the bad news."
"她听到坏消息后突然哭了起来。" (ta tingdao huai xiaoxi hou turan kule qilai)
to openly show emotions or feelings
to establish a rule or principle
to feel good about something you have done
to surprise or shock someone
a young or innocent kind of love
to trust someone completely