a period or stage in someone’s life
период или этап в жизни человека (period ili etap v zhizni cheloveka)
"Leaving college was the end of an important chapter of her life."
"Окончание колледжа стало концом важной главы её жизни." (okontchanie kolledzha stalo kontsom vazhnoi glavy ye yo zhizni)
a little stupid or crazy
someone or something that is very annoying
a sudden and powerful beginning; often used metaphorically
to fail completely in an embarrassing way
to understand something fully
all day and all night; continuously