干上导演这一行，就意味着咬紧牙关和义无反顾。

Does directs this line, means that clenches the teeth and is duty-bound not to turn back.

youdao

干上导演这一行，就意味着咬紧牙关和义无反顾。

Does directs this line, means that clenches the teeth and is duty-bound not to turn back.

youdao