1、 Join a small group bike tour for an evening of exploration in the heart of Washington,D.
參加一個晚上在華盛頓特區中心進行探索的自行車旅行團。
2、 At space camp, trainees can earn their space exploration badge as they build and fire model rockets, learn about space tasks and try simulated (模擬) flying to space with the crew from all over the world.
1、 Vast areas of the United States are off-limits to oil exploration and production in the name of environmental protection.
以環境保護的名義，美國的大片地區禁止石油勘探和生產。
1、 ” questions that nobody present would know the answer to and that would spark exploration, they engaged in better inquiry at the next exhibit —asking more questions, performing more experiments and making better interpretations of their results.