氧: oxygen (chemistry)...
取消: to cancel, cancellation...
协定: agreement, accord, to reach an agreement...
出具: to issue (document, certificate etc), to provide...
经验: experience, to experience...
索取: to ask, to demand...
聊: to chat, to depend upon (literary), temporarily, just, slightly...
个人: individual, personal, oneself...
建设: to build, to construct, construction, constructive...
废墟: ruins...
