spontaneously
US /spɑːnˈteɪ.ni.əs.li/
UK /spɑːnˈteɪ.ni.əs.li/
副詞
1.
自発的に
in a way that is natural, often sudden, and not planned or forced:
例:
•
This story may prompt you to burst spontaneously into uncontrollable sobs.
Lingolandでこの単語を学ぶ
自発的に
in a way that is natural, often sudden, and not planned or forced: