1、 Join a small group bike tour for an evening of exploration in the heart of Washington,D.
参加一个晚上在华盛顿特区中心进行探索的自行车旅行团。
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 (模拟) 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.
以环境保护的名义，美国的大片地区禁止石油勘探和生产。
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.