When he graduated from college he found a job as a civil servent working for the Ministry of Economic Affairs.
 civil servant public servant如果不想說 servant 也可以說 I work for the government. 表示我是公務員
這是一個連環問題: 燃燒石油導致二氧化碳增加，二氧化碳增加導致溫室效應，溫室效應導致冰層融化、海平面上升。 (請填空)
This is a chain of problems. Burning oil leads to increase in carbon dioxide, which leads to the greenhouse effect, which leads to melting f glaciers, which leads to rising sea levels.