合理: rational, reasonable, fair...
遗憾: regret, to regret, to be sorry that...
稳定: steady, stable, stability, to stabilize, to pacify...
合资: joint venture...
人: person, people...
通行证: a pass (authority to enter), a laissez-passer or safe conduct...
家人: household, (one's) family...
小费: tip, gratuity...
预兆: omen, sign (of sth yet to occur), prior indication, to foreshadow...
背包: knapsack, rucksack, infantry pack, field pack, blanket roll...