QR是快速反应的意思，意指代码中的数据能够迅速解码。
QR code stands for quick response, a reference to how speedily the data they contain can be decoded.
Global这个词的意思是某事或某物涉及到全世界，global news coverage意指全世界听到在美国发生的事件的消息之后，纷纷写下或报道这一事件。
The word global means something involving the entire world. Global news coverage means that people all over the world heard stories written about what had happened in the U. S.
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