Peace talks were derailed by the sudden withdrawal of key mediators from the conference.
De-（向下）+ rail（铁轨）-ed。从铁轨上掉下来 = 脱轨。引申为计划“掉链子”。
The state legislature approved funding to expand vocational training programs for high school students.
Voca（声音/呼唤）+ tional。听到内心的“呼唤”去做某事 = 职业。Voca 像 Voice（声音），职业是你的声音所在。