a significant or groundbreaking achievement
一次重大的或开创性的成就 (yī cì zhòngdà de huò kāichuàngxìng de chéngjiù)
"The first man landing on the moon was truly a giant leap for mankind."
"第一个登月的人真的是人类的伟大飞跃。" (Dì yī gè dēng yuè de rén zhēn de shì **rénlèi de wěidà fēiyuè**.)
used to say that everyone knows what happened next
take a risk hoping for more success
someone or something very funny or entertaining
you get the results of your actions, good or bad
to help someone remember something
to delay taking action or making a response