我们帮助他们也是对自己的一种锻炼英语 参考：我们帮助他们也是对自己的一种锻炼。We help them as a kind of exercise for ourselves.
英语翻译 1.The boys，such as Jack and David are very friendly to me2.In reaching this decision，he played an important role3.No matter if you don't find this book.4.We can help to save ourselves by helping them.5.I am willing to do what you expect me to do anythings.
帮忙他们就是帮忙拯救我们自己（怎么翻译用上by helping ) we save ourselves by helping them
