补充：She didn't leave school until the rain stopped.Here "until" means "before",that is to say,"She didn't leave school before the rain stopped",or after the rain stopped,she left the school.
翻译：直到雨停了她才离开学校.（或者：在雨没有停之前,她没有离开学校.）
这句用的是not...until...这一结构,表示“直到...才...”,until 表示“直到...,在...之前”.