陨石: meteorite, aerolite...
诊所: clinic...
不大: not very, not too, not often...
届时: when the time comes, at the scheduled time...
暂: to scurry, variant of...
失败: to be defeated, to lose, to fail (e.g. experiments), failure, defeat...
闪电: lightning...
事务: (political, economic etc) affairs, work, transaction (as in a computer database)...
管理费: administrative fee, management cost...
欢乐: gaiety, gladness, glee, merriment, pleasure, happy, joyous, gay...