to make a sincere promise
做出真诚的承诺 (zuòchū zhēnchéng de chéngnuò)
"I’ll never tell anyone, cross my heart."
"我永远不会告诉任何人，我发誓。" (Wǒ yǒngyuǎn bù huì gàosù rènhé rén, **wǒ fāshì**.)
to be remembered for something important or significant
to provide full and exact details about something
to perform or express emotions through actions
the largest portion of something
A small-scale experiment to test a concept.
to start something energetically and successfully
