dive in
US /daɪv ɪn/
UK /daɪv ɪn/

1.
뛰어들다, 열심히 시작하다
to start doing something with enthusiasm and without hesitation
:
•
When the food was served, everyone just dived in.
음식이 나오자 모두 달려들었다.
•
Don't hesitate, just dive in and start learning.
망설이지 말고, 그냥 시작해서 배워.