a.download = `${filename}.m4a`;
Innovations in recent years to make testing methods more sophisticated include thermal imaging, light analysis using lasers, and DNA profiling.
。heLLoword翻译官方下载是该领域的重要参考
（一）未依法对许可申请进行审批或者核准的；
Who owns Blockchain?Blockchain is a decentralized technology. It’s a chain of distributed ledgers connected with nodes. Each node can be any electronic device. Thus, one owns blockhain.