Additionally, some "Getting Started" courses are available free of charge.
此外,一些“入门”课程是免费的。
However, many people always keep their recharger plugged in. Additionally, many people charge their phones every night, whether they need to be recharged or not.
但是许多人在不考虑手机是否要充电的情况下,总是将充电器一直插在电器插槽上,有的甚至整晚都在给手机充电。
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