a small, round object, usually made of plastic or metal, sewn onto a piece of clothing and used for fastening two parts together
衣服的纽扣
the fact that one is able or possesses the necessary skills or means to do something
能力
a careful and systematic study of a subject to discover new facts or information about it
研究
the best performance or result, or the highest or lowest level that has ever been reached, especially in sport
记录
a period of time that a year is divided into, such as winter and summer, with each having three months
季节
the thin sheets on which one can write, draw, or print things, also used as wrapping material
纸
(plural) a group of people whose job is to catch thieves, killers, etc. and make sure everyone follows rules
警察
something such as a hammer, saw, etc. that is held in the hand and used for a specific job
工具
the act or process of transforming raw materials or different components into goods that can be used by customers
作业