Afternoon tea is also called "low tea" as it is served at a low table.
下午茶又称“low tea”,这样叫是因为它是放在一张矮桌上享用的。
High tea
Originally it was the tea time taken later in the day by the working class upon the arrival home from work, at around 5–6pm, since they did not have the luxury to stop at mid-afternoon. Virtually a main meal, it was the equivalent to what most of us would term ‘dinner’ and included meat and vegetables.
Contrary to popular belief and the aristocratic sounding name, High Tea did not originate amongst upper classes. In fact, the opposite is true; High Tea is a predominantly working class meal that was traditionally taken between 5 and 7pm – the time that labourers would arrive home from their physically demanding jobs. It was called High Tea because, in contrast to the cakes and tea at low coffee tables of the upper class Low Tea, High Tea was enjoyed at a high table – the dining table.