保护: to protect, to defend, to safeguard, protection...
激活: to activate...
平时: ordinarily, in normal times, in peacetime...
永远: forever, eternal...
课文: text...
协议书: contract, protocol...
容器: receptacle, vessel, (computing) container...
伤口: wound, cut...
沉重: heavy, hard, serious, critical...
筒: tube, cylinder...