According to local media reports, he was armed only with the machete and GPS and claimed he was simply testing his survival techniques.

据当地媒体称，他当时身上只带了一把大刀和GPS，声称是在检验自己的生存技能。

And educators around the world are testing different techniques for finding ways to make people critical of the content they consume.

世界各地的教育工作者正在测试不同的技术，以找到让人们批评他们消费的内容的方法。

Two main viral testing techniques are critical: one tells you if you have the virus and the other shows if you've already had it.

两种主要的病毒检测技术至关重要：一种会告诉您是否感染了病毒，另一种会显示您是否已经感染了病毒。