迄今为止最好的新增元素，名为date和datetime的日期选择器类型（还有其他额外的date/time类型，如时间，星期，月份，以及本地日历）。
By far the best addition is the date picker type called date and datetime (there are other additional date/time types such as time, week, month datetime-local as well).
学习各个季节、月份、星期的名称以及时间表达；然后学习如何表达时刻和持续时间(即当前时间和完成事情所要花费的时间)。
Learning the names of seasons, months, the days of the week and how to tell the time. Learning to say what time it is and giving duration (the current time and how long things take).
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