1.They lost their lives to 【protect】the country against attach.
他们为了保护国家抵抗侵犯牺牲了生命.
2.After 【persuading】him to give up somking,Kate was in relief.
在说服他戒烟之后,凯特很轻松释然
persuade sb to do
3.If we solve the problem in this way,it may do more 【harm】than good.
如果我们这样解决问题,会造成更大伤害
do harm to 造成伤害