4周搞定2000+托福核心词
NASA
常考释义
By means of a radio dish belonging to NASA's Deep Space Network, the message was sent out into the depths of space.
通过 NAS外太空网络的无线设备,信息被发送了出去。
来源于:剑雅9-Test3n. National Aeronautics and Space Administration (美国)国家航空航天局
The debris has no toxic contamination, but there could be sharp edges, NASA officials have said.
这些碎片不含有毒性污染物,但边缘可能有点锋利,NASA官员说。
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