1.search engine 搜索引擎
例句:I'm usually just using the search engines to look up information.
我通常只是用搜索引擎找一些资料
。2.ground-based 地面的
例句:To detect these waves, astronomers use several kinds of large ground-based telescopes.
为了探测这些波, 天文学家们使用了各种类型的地面大型望远镜.
3.disaster relief 赈灾
例句:In addition, the SBA is well known for its disaster relief program.
除此以外, 小企业管理局还以其救灾计划著称
。4.sea level 海平面
例句:The stadium was 2275 metres above sea level.
这个体育馆海拔 2,275 米
。