hallmark 标志，有标志性的

sponsor to pay the costs of a particular event, programme, etc. as a way of advertising: sports events sponsored by the tobacco industry 烟草公司赞助的体育赛事

emerge v [I, Ipr] ~ (from sth) come out or up (from water, etc) （从水中等）出来 , 现出 , 露出 : The swimmer emerged from the lake. 游泳者从湖中出来 . * The moon emerged from behind the clouds. 月亮从云层後露出 .

unproductive　not producing very much; not producing good results 没收成的 : an unproductive discussion / meeting 没结果的讨论，会议 I've had a very unproductive day. 我这一天特没收获

guidance n [U] help or advice that is given to sb, especially by sb older or with more experience 引导 ; 领导 ; 指导 : be under sb's guidance 在某人的指导下 parental guidance , ie guidance by parents 受父母指教

sign up （ for ）报名（参加）
　　
career n profession or occupation with opportunities for advancement or promotion 职业 ; 事业 ; 生涯 : a career in accountancy, journalism, politics, etc 会计﹑ 新闻工作﹑ 政治等生涯

polish improve (sth) by correcting, making small changes or adding new material 修正 , 修改 , 修饰（某物） : polish a speech, an article, etc 给讲稿﹑ 文章等润色 .

adventure n [C] unusual, exciting or dangerous experience or undertaking 不寻常的 , 有刺激性的或危险的经历或工作 ; 奇遇 ; 冒险 : have an adventure 有一次奇遇 * her adventures in Africa 她在非洲的冒险经历 .
　　
ensure (US insure) v make sure; guarantee 确保 ; 保证 ; 担保 : The book ensured his success. 那本书确定了他的成就 . * Please ensure that all the lights are switched off at night. 夜间请务必将所有的灯关掉 . These pills should ensure you a good night's sleep. 服下这些药丸可保你睡一宿好觉 .