The sandbox is time-boxed, but there is no limit to how much you can use it.

沙箱是有时间限制的，但是对于您使用它的程度却没有限制。

youdao

Without doubt, however, there will be a natural limit to how much time per week people will spend online.

然而毫无疑问的是总会有一个自然的界限限制人们每周花在网络上的时间。

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The first step in reducing the amount of time you spend in front of your screen is to get an idea of just how much time you do actually spend there.

减少你在电脑前所花时间的第一步，你需要了解是实际上每天真正需要花多少时间在电脑前，在很多情况下，你会大吃一惊，比如说，我估计我每天需在电脑前花6小时，可实际情况呢，在5天里，我每天花了10小时在这个上面，我不知道这是为什么

youdao

Nor how much time there was, in fact, before the scourge arrived at her own door.

NPR: E.L. Doctorow on Sherman and 'The March'

Quite how much time there was to act before conditions became intolerable was not yet clear, said Christophe Bonnal from the French space agency (Cnes).

BBC: 'Urgent need' to remove space debris

As far as i understand about the valuation of Facebook company, the key revenue drivers shown by Mr damodaran was exactly right, but there are two more main points to consider i.e how many genuine active users they have as well as how much time there is no such social networking site in this competition.

FORBES: Facebook's IPO: Thoughts On Momentum, Pricing And Valuation (It's Still No Buy)