ˌperk ˈupˌperk sb↔ˈup
(informal) to become or to make sb become more cheerful or lively, especially after they have been ill/sick or sad （使）振奋，活跃，快活 SYN brighten
He soon perked up when his friends arrived.
朋友一来他就精神起来了。
ˌperk ˈupˌperk sb↔ˈup
(informal) to become or to make sb become more cheerful or lively, especially after they have been ill/sick or sad （使）振奋，活跃，快活 SYN brighten
He soon perked up when his friends arrived.
朋友一来他就精神起来了。