(located) at; (to be) in; to exist; in the middle of doing sth; (indicating an action in progress)[cedict]
夜间
yè jiānㄧㄝˋ ㄐㄧㄢ
nighttime; evening or night (e.g. classes)[cedict]
发挥
fā huīㄈㄚ ㄏㄨㄟ
to display; to exhibit; to bring out implicit or innate qualities; to express (a thought or moral); to develop (an idea); to elaborate (on a theme)[cedict]
极
jíㄐㄧˊ
extremely; pole (geography, physics); utmost; top[cedict]