挺身相助 meaning in English

throw oneself into the breach

Generous and kindly , they are always ready to help in case of emergency
他们生性善良大方，遇到紧急情况一定会挺身相助。
He has righteous and just , and will always help a friend in need
贪玩的年轻人，专门负责捣乱富正义感的他，朋友有事一定挺身相助。
No one in cross ' s adopted family proved a match , so doug andrews stepped forward
在收养克罗斯的家庭成员中无人与其血型相配，于是道格?安德鲁斯挺身相助。