to deal with a lot of information or material
处理大量的信息或材料 (chǔlǐ dàliàng de xìnxī huò cáiliào)
"The lecture covered a lot of ground in just one hour."
"这次讲座在一个小时内涵盖了许多内容。" (zhè cì jiǎngzuò zài yīgè xiǎoshí nèi hánɡàile xǔduō nèiróng.)
not tell anyone about something
to make others happy with your positivity
to leave something undecided or uncertain
anxiety about things that are unfamiliar or uncertain
A difficult task or challenge.
to work very hard without rest
