to control people very strictly and harshly
非常严格和严厉地控制人们 (feichang yange he yanli di kongzhi renmen)
"The dictator ruled with an iron fist for twenty years."
"这位独裁者以铁腕统治了二十年。" (zhe wei ducai zhe yi tie wan tongzhi le ershi nian)
to prepare for every possible situation
to fall asleep suddenly, especially when sitting
To do something with full effort and enthusiasm.
a sign that something bad will happen soon
to practice and improve one’s cognitive abilities
to have access to vast information easily, especially online
