lifetime, generation, group of people, class, classifier for generations, (literary) classifier for people

pron. 指说话人自己refers to the speaker himself; 指办事或事前而提到的人 refers to the person who is handling a matter or has been mentioned before

v. 向公安部门报告危险情况或发出紧急信号 to report to the police about dangerous situations or to send an emergency signal

v. 一定要有，不可少 be indispensable

adv. 指出最主要的原因、结论，强调事实或原因 after all, all in all, conclusion drawn by getting to the bottom of something

v. 用纸、盒子等把商品包起来 to wrap, to package (using paper, boxes, etc. to wrap goods); 比喻对人或事物进行形象设计，使美化、有特色 metaphorically, to design or beautify the image of a person or thing, to make it attractive or distinctive; n. 包装商品用的纸、盒子、瓶子等 wrapping or packaging materials such as paper, boxes, bottles, etc. used for goods