Department of energy
能源部（DOE，美国）；能源系
🧩 词语组成解析
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
🗣️ 情景例句
Learning to express onself well is an important part of education.
学会把意思表达清楚是受教育的一个重要方面。
He's been out of a job for months.
他已经失业好几个月了。
They're people I met during the trip.
他们是我旅行时认识的人。