密封: seal; seal up; seal airtight; seal hermetically; encapsulation lutation; hermetic sealing; sealing; sealing off; enclosing 短语和例子密封的罐头 sealed tin; 密封的容器 hermetically sealed chamber; 密封的文件 s
护: 动词1.(保护; 保卫) protect; guard; shield 短语和例子护厂 guard a factory; 护林 protect a forest; 用手遮护眼睛 shield one's eyes with one's hand; 他举起手臂护住脸以免被拳击中。 he raised his arm to protect his face from the b