Question

uncertain adj.不确定的；不稳定的；易变的 (1) 地面上的生命是短暂而不确定的。(2) 我不能肯定去还是不去。(3) 他落选的原因似乎并不清楚。(4) 我毫不含糊地把我对他的看法告诉了他。(5) 当前全球经济正面临一个极不稳定的时期。(6) 天气变换莫测，延误了我们启程。 If you're certain of something, you're sure of it. When you're uncertain, you don't know. If you don't know the answer to a math question, you're uncertain. If you can't remember where you parked your car, you're uncertain about its location. Also, anything unknown or up in the air in uncertain. Trying to be a famous actor is an uncertain path. Gambling money on horses is very uncertain. And, it's certainly hard to plan for an uncertain future.

Accepted Answer

英 [ʌn'sɜːtn] 美 [ʌn'sɜːrtn] (1) Life on earth is short and uncertain.(2) I'm uncertain whether to go or not.(3) It seems uncertain why he lost the election.(4) I told him what I thought of him in no uncertain terms!(5) This is a very uncertain time for the global economy.(6) The uncertain weather delayed our departure. To be uncertain is to be unsure of something. Also, uncertain things are undecided, unknown, or doubtful in some way. 1[ADJ-GRADED 能被表示程度的副词或介词词组修饰的形容词]不确定的；迟疑的；无把握的 If you are uncertain about something, you do not know what you should do, what is going to happen, or what the truth is about something.   [usu v-link ADJ]He was uncertain about his brother's intentions...他拿不准他哥哥的意图是什么。They were uncertain of the total value of the transaction...他们还不确定这笔交易的总价值是多少。He stopped, uncertain how to put the question tactfully...他停顿下来，犹豫着该如何巧妙地提出那个问题。With some hesitation and an uncertain smile, she held out her hand.她犹豫了一下，带着迟疑的微笑把手伸了出去。uncertainlyHe entered the hallway and stood uncertainly.他走进门厅，犹疑地停了下来。2[ADJ-GRADED 能被表示程度的副词或介词词组修饰的形容词]未知的；不明了的；不确定的 If something is uncertain, it is not known or definite.   [usu v-link ADJ]How far the republics can give practical help, however, is uncertain...然而，这些共和国究竟能够提供多少切实可行的帮助还未可知。It's uncertain whether they will accept the plan...还不确定他们是否会接受这一方案。Students all over the country are facing an uncertain future.全国各地学生前途未卜。3[PHRASE 短语]明确地；毫不含糊地 If you say that someone tells a person something in no uncertain terms, you are emphasizing that they say it strongly and clearly so that there is no doubt about what they mean.   [PHR after v]  [emphasis]She told him in no uncertain terms to go away.她明白无误地叫他离她远远的。

英语单词	uncertain
英美音标	英 [ʌn'sɜːtn] 美 [ʌn'sɜːrtn]
中文释义	adj.不确定的；不稳定的；易变的
英语例句	(1) Life on earth is short and uncertain. (2) I'm uncertain whether to go or not. (3) It seems uncertain why he lost the election. (4) I told him what I thought of him in no uncertain terms! (5) This is a very uncertain time for the global economy. (6) The uncertain weather delayed our departure.
中文例句	(1) 地面上的生命是短暂而不确定的。 (2) 我不能肯定去还是不去。 (3) 他落选的原因似乎并不清楚。 (4) 我毫不含糊地把我对他的看法告诉了他。 (5) 当前全球经济正面临一个极不稳定的时期。 (6) 天气变换莫测，延误了我们启程。
vocabulary简明	To be uncertain is to be unsure of something. Also, uncertain things are undecided, unknown, or doubtful in some way.
vocabulary扩展	If you're certain of something, you're sure of it. When you're uncertain, you don't know. If you don't know the answer to a math question, you're uncertain. If you can't remember where you parked your car, you're uncertain about its location. Also, anything unknown or up in the air in uncertain. Trying to be a famous actor is an uncertain path. Gambling money on horses is very uncertain. And, it's certainly hard to plan for an uncertain future.
柯林斯解释	1 [ADJ-GRADED 能被表示程度的副词或介词词组修饰的形容词]不确定的；迟疑的；无把握的 If you are uncertain about something, you do not know what you should do, what is going to happen, or what the truth is about something. [usu v-link ADJ] He was uncertain about his brother's intentions... 他拿不准他哥哥的意图是什么。 They were uncertain of the total value of the transaction... 他们还不确定这笔交易的总价值是多少。 He stopped, uncertain how to put the question tactfully... 他停顿下来，犹豫着该如何巧妙地提出那个问题。 With some hesitation and an uncertain smile, she held out her hand. 她犹豫了一下，带着迟疑的微笑把手伸了出去。 uncertainly He entered the hallway and stood uncertainly. 他走进门厅，犹疑地停了下来。 2 [ADJ-GRADED 能被表示程度的副词或介词词组修饰的形容词]未知的；不明了的；不确定的 If something is uncertain, it is not known or definite. [usu v-link ADJ] How far the republics can give practical help, however, is uncertain... 然而，这些共和国究竟能够提供多少切实可行的帮助还未可知。 It's uncertain whether they will accept the plan... 还不确定他们是否会接受这一方案。 Students all over the country are facing an uncertain future. 全国各地学生前途未卜。 3 [PHRASE 短语]明确地；毫不含糊地 If you say that someone tells a person something in no uncertain terms, you are emphasizing that they say it strongly and clearly so that there is no doubt about what they mean. [PHR after v] [emphasis] She told him in no uncertain terms to go away. 她明白无误地叫他离她远远的。

Uncertain I Told Future Adj Graded 能被表示程度的副词或介词词组修饰的形容词 [Usu V Link