indefinite
01
不确定的, 模糊的
not precisely or clearly defined, stated, or known
例子
The instructions were so indefinite that many participants struggled to complete the task correctly.
指示如此不明确，以至于许多参与者难以正确完成任务。
His indefinite answer left everyone confused, as they were expecting a more straightforward response.
他不确定的回答让所有人都感到困惑，因为他们期待一个更直接的回应。
02
不确定的, 无限的
lasting for an unspecified length of time
例子
The project 's timeline was indefinite, causing uncertainty among the team members.
项目的时间表是不确定的，这在团队成员中引起了不确定性。
The agreement had an indefinite duration, subject to review every year.
该协议具有无限期的期限，每年需进行审查。
例子
The manager remained indefinite about approving the proposal, leaving the staff unsure of what to expect.
经理对批准提案一事仍不确定，让员工不知道会发生什么。
He remained indefinite about whether he would attend the meeting, leaving the organizers waiting for his decision.
他对于是否会参加会议仍然不确定，让组织者等待他的决定。
例子
Sarah felt indefinite about whether to accept the job offer, unsure if it was the right fit for her long-term goals.
莎拉对是否接受这份工作感到不确定，不确定它是否符合她的长期目标。
She felt indefinite about her future career path, unsure whether to pursue medicine or education.
她对自己的未来职业道路感到不确定，不确定是追求医学还是教育。
05
不定的
(of a grammatical component) used to refer to general or unfamiliar persons, things, or concepts
例子
In the sentence " A dog is barking, " the use of the indefinite article " a " indicates any dog, not a specific one.
在句子“一只狗在叫”中，不定冠词“a”的使用表示任何狗，而不是特定的狗。
Indefinite pronouns like " someone " and " anyone " can refer to people without specifying who they are.
像“某人”和“任何人”这样的不定代词可以指代不特定的人。
06
不定的
(of an integral) not evaluated between specific limits
例子
To solve the equation, she first calculated the indefinite integral of the function, ensuring to include the +C.
为了解决这个方程，她首先计算了函数的不定积分，确保包括+C。
Understanding the concept of indefinite integrals is crucial for mastering calculus and solving differential equations.
理解不定积分的概念对于掌握微积分和求解微分方程至关重要。
