spontaneously
US
UK spontaneously adv: (without planning)
SC 自发地 zì fā de
TC 自發地
TC 自發地
SC 未经计划地 zì fā de ，wèi jīng jì huà de
We spontaneously decided to spend the weekend at the beach.
spontaneously adv: (naturally)
SC 自然地 zì rán de
The leaves spontaneously changed color when the weather began to cool.
spontaneously adv: (on impulse)
SC 一时冲动地 yì shí chōng dòng de
I spontaneously bought a pair of neon pink pants.