having the necessary experience or knowledge to perform well in a particular field

熟练的, 有技能的

referring to something that involves repeating the same actions or elements multiple times, often leading to boredom or dissatisfaction

重复的, 单调的

to have a certain amount of tasks or problems that need to be dealt with
to put someone in a difficult or challenging situation without providing any help or guidance
to demonstrate one's ability in surpassing obstacles and dealing with difficult situations
the most important factor in an argument or a discussion that brings it to an end

根本问题, 关键点

not exclusive to any particular gender and suitable for people of all gender identities

性别中立的, 不特定性别的

someone whose job is to put out fires and save people or animals from dangerous situations

消防员, 灭火员

someone whose job is to protect people, catch criminals, and make sure that laws are obeyed

警察, 警务人员

a woman whose job is to protect people, catch criminals, and make sure that laws are obeyed

女警察, 女性警察

a person, often a man, who is employed to deliver mail and packages to people's homes or other locations

邮递员, 投递员

a person, often a man, who is appointed or elected to speak on behalf of a group or organization

发言人, 代表

a person who is good at sports and physical exercise, and often competes in sports competitions

运动员, 竞技者

a person who works on a plane to bring passengers meals and take care of them

空乘人员, 航空服务员

