brisk
adjective uk/brɪsk/ us/brɪsk/
轻快的，生气勃勃的
quick, energetic, and active
a brisk walk 轻快的步伐
He set a brisk pace and we struggled to keep up. 他步伐矫键，我们在后面拼命跟着。
Her tone on the phone was brisk (= she spoke quickly and used few words) and businesslike. 电话里她的语气简洁干练。