No matter how powerful our brains are, they need recuperation time, to be kept in shape, and even an occasional charge.
不论我们的大脑有多么强大，它们还是需要休息恢复的，保持状态良好，甚至偶尔的充充电。
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You can download and run the software for 30 days at nocharge, which is enough time to try the IDE's many features, but you must then buy a license if you want to continue using it.
As mentioned earlier, there is nocharge for BigInsights Basic edition, but there is a charge of US$0.30/hour (at the time of writing) for using RHEL and the IBM Cloud infrastructure.
如前所述，BigInsights Basic 版本是免费的，但是使用 RHEL 与 IBM Cloud 基础架构的费用为 0.30 美元/每小时。